or

英[ɔː(r)]美[ɔːr]

conj.或，或者，还是，不然，否则，左右；

prep.<古、诗>在…之前，比…更早；

n.[纹章]黑金色、黑色；

英语六级真题

Workers' advocates have criticized Haslam's plan, saying it would mean some campus workers would lose their jobs or benefits.

They are more worried about their children being depressed or anxious.

They are more likely to grow up in neighborhoods that their parents say aren't great for raising children, and their parents worry about them getting shot, beaten up or in trouble with the law.

These math circles cost nothing, or they're very cheap for students to get involved in, but you have to know about them, said Rusczyk.

These designers established the modem dress code, letting playsuits and other activewear outfits suffice for casual clothing, allowing pants to enter the wardrobe, and prizing rationalism and versatility in dress, in contradiction to dressing for an occasion or allotment of the day.

There is no best parenting style or philosophy, researchers say, and across income groups, 92% of parents say they are doing a good job at raising their children.

The meals are not particularly appetizing, or even safe.

The birds can easily eat pieces of plastic or rubber hands and they can die, said Flack.

Teachers in low-income urban and rural areas with no history of participating in math competitions may not know about advanced-math opportunities like MathCounts—and those who do may not have support or feel trained to lead them.

Students use forums to chat, play games, and solve problems together at no cost, or they can pay a few hundred dollars to take courses with trained teachers.

Some are pricey—a three-week intensive program can cost $4,500 or more—but most offer scholarships.

Social scientists say the differences arise in part because low-income parents have less money to spend on music class or preschool, and less flexible schedules to take children to museums or attend school events.

Schools or teachers who sign up for the National Math Club receive a kit full of activities and resources, but there's no special teacher training and no competition attached.

Parents who are white, wealthy or college-educated say too much involvement can be bad.

Of families earning more than $75,000 a year, 84% say their children have participated in organized sports over the past year, 64% have done volunteer work and 62% have taken lessons in music, dance or art.

Of course, much of this argument in the 1930s-40s was advanced because there was little or no experience in justifying apparel ( ' , 服装) on the basis of utility.

Most affluent parents enroll their children in preschool or day care, while low-income parents are more likely to depend on family members.

Most Grand Tourists, however, stayed for briefer periods and set out with less scholarly intentions, accompanied by a teacher or guardian, and expected to return home with souvenirs of their travels as well as an understanding of art and architecture formed by exposure to great masterpieces.

Meanwhile, Macy's has simply struggled to lure consumers who are more interested in spending on travel or dining out than on new clothes or accessories.

London was a frequent starting point for Grand Tourists, and Paris a compulsory destination; many traveled to the Netherlands, some to Switzerland and Germany, and a very few adventurers to Spain, Greece, or Turkey.

In these groups, which came out of an Eastern European tradition of developing young talent, professors teach promising K-12 students advanced mathematics for several hours after school or on weekends.

In poor families, meanwhile, children tend to spend their time at home or with extended family.

In an earlier time, American fashion had also followed the dictates of Paris, or even copied and pirated specific French designs.

Implicitly or explicitly, American fashion addressed a democracy, whereas traditional Paris-based fashion was prescriptive and imposed on women, willing or not.

Haslam has said colleges would be free to opt in or out of the outsourcing plan, which has not been finalized.

Discipline techniques vary by education level: 8% of those with a postgraduate degree say they often beat their children, compared with 22% of those with a high school degree or less.

At a time when young beauty shoppers are often turning to Sephora or Ulta instead of department store beauty counters, Macy's hopes Bluemercury will help strengthen its position in the category.

American parents, whether rich or poor, have similar expectations of their children despite different ways of parenting.

According to Mark Saul, the director of competitions for the Mathematical Association of America, not a single African-American or Hispanic student—and only a handful of girls—has ever made it to the Math Olympiad team in its 50 years of existence.

71% of parents with a college degree say they do it every day, compared with 33% of those with a high school diploma or less.

Most Americans don’t eat enough fruits, vegetables or whole grains.

In the past, health experts warned us that the day would come in which it would become very difficult to provide medical care for even common problems such as lung infection or severe sour throat.

What can be done about mass unemployment? All the wise heads agree: there're no quick or easy answers.

We need to accept that fact across much of the planet, so waste with little or no treatment will be used in agriculture for good reason.

Today's teenagers admire their parents and welcome parental guidance about important matters such as career choice—though certainly not Mom and Dad's advice on matters of personal taste, such as music or fashion.

They speak with Mom or Dad when they have a problem.

There's work to be done, but workers aren't ready to do it—they're in the wrong places, or they have the wrong skills.

The report focused on poor urban areas, where farms in or near cities supply relatively inexpensive food.

The good news is that a bill just approved by the House and a bill approved by the Senate Finance Committee would implement or test many reforms that should help slow the rise in medical costs over the long term.

The gold standard study by Harvard and Columbia University scholars found that even in high-poverty schools, teachers consistently had a huge positive or negative impact.

The changes would have to be approved or rejected as a whole by Congress, making it hard for narrow-interest lobbies to bend lawmakers to their will.

The Senate Finance bill would impose an excise tax ( ' , 消费税) on health insurance plans that cost more than $8,000 for an individual or $21,000 for a family.

That is far less likely to happen if Congress also adopts strong pay-go rules requiring that any increase in payments to providers be offset by new taxes or budget cuts.

Right into the early 20th century, kitchens were smoky, noisy places, generally located underground, or to the back of the house, and as far from living space as possible.

Or so the industry hopes.

One boy said, I'd rather be concentrating on artistic efforts than saving the world or something.

Not many young people eligible for voting are interested in local or national elections these days.

Most of these operations draw irrigation water from local rivers or lakes.

Most agree that the solution is to push doctors to accept fixed payments to care for a particular illness or for a patient's needs over a year.

Many even think their parents are cool! Although more than a third have an object in their rooms they would like to keep secret from their parents, rarely is it anything more alarming than a diary or offcolor ( ' , 低俗的) book or CD.

It's been the year of interactive television advertising for the last ten or twelve years, says Colin Dixon of a digital-media consultancy.

Is surgery, radiation or careful monitoring best for prostate ( ' , 前列腺) cancer? Is the latest and most expensive cholesterol-lowering drug any better than its common competitors? The pending bills would spend additional money to accelerate this effort.

Interactive television advertising has been under debate for the last decade or so.

In the last five years or so, there has been an explosion of green claims and environmental claims.

In fact, other recent studies have found there has never been a time in American history when so small a proportion of young people have sought or accepted leadership roles in local civic organizations.

Get a teacher from the top 20%, and it's as if a child has gone to school for an extra month or two.

Enrollees would have to pay more money for many services out of their own pockets, and that would encourage them to think twice about whether an expensive or redundant test was worth it.

During commercials, an overlay will appear at the bottom of the screen, prompting viewers to press a button to request a free sample or order a catalogue.

David Mallen, associate director of the Council of Better Business Bureau, said in the last two years the organization had seen an increase in the number of claims companies were bringing against each other for false or misleading environmental product claims.

Changes in policy would be approved or rejected as a whole so that lobbyists would find it hard to influence lawmakers.

But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling ( ' , 大量消耗) transport.

But overall, we suspect that spending would come down through elimination of a lot of unnecessary or even dangerous tests and treatments.

But missing from all these data is the sense that today's young care very much about their country, about the broader civic and political environment, or about the future of their society.

But is this right? Do things get better or worse as we get richer? Here the Stockholm declaration is ambiguous.

But could Norway keep its standard of living and yet cut its emissions to Moroccan or even Ethiopian levels? That question, repeated across a dozen environmental issues and across our diverse planet, is what will ultimately determine whether the human race is living beyond its ecological means as it pursues economic revival.

Any doctor who has wrestled with multiple forms from different insurers, or patients who have tried to understand their own parade of statements, know that simplification ought to save money.

And the head-to-head competition might give them a strong incentive to lower their prices, perhaps by accepting slimmer profit margins or demanding better deals from providers.

Asked what they would like to change in the world, the students mentioned only personal concerns such as slowing down the pace of life, gaining good friends, becoming more spiritual, becoming either more materially successful or less materially oriented ( ' , depending on the student's values), and being more respectful of the Earth, animals and other people.

To reduce or avoid it, researchers have examined the effect of smoking, diet, brain-challenging games, exercise and other strategies.

Is there really a magic memory pill or a herbal recall remedy? I have been frequently asked if these memory supplements work.

Cognitive decline is the loss of ability to learn new skills, or recall words, names, and faces that is most common as we age.

A lot of times people are not really aware of the impact they have, or the fact that taking them in combination with other medications might put you at increased risk for something that you wouldn’t otherwise being countering or be at risk for.

Yet the persistent question of Why do I need that? – or, perhaps more tellingly, Why do you need to know that? – dogs the steps of many new ventures.

While we argue phasing out racial terminology ( ' , 术语 ) in the biological sciences, we also acknowledge that using race as a political or social category to study racism, although filled with lots of challenges, remains necessary given our need to understand how structural inequities and discrimination produce health disparities ( ' , 差异 ) between groups, Yudell said.

While most parents, teachers and clinicians would react to an adolescent using drugs or getting drunk, they may easily overlook teenagers who are engaging in inconspicuous behaviors.

Today's battery breakthroughs come as the world looks to expand modern energy access to the billion or so people without it, while also cutting back on fuels that warm the planet.

They slept six hours a night or less.

There is also very little detail on who will provide the funds or, importantly, who is responsible for their provision.

The market demand for electronic devices is now either declining or not growing as fast as before.

So what other variables could be used if the racial concept is thrown out? Yudell said scientists need to get more specific with their language, perhaps using terms like ancestry or population that might more precisely reflect the relationship between humans and their genes, on both the individual and population level.

Scholars warn that Antarctica's political drift could blur the distinction between military and civilian activities long before the continent's treaties come up for renegotiation, especially in parts of Antarctica that are ideal for intercepting ( ' , 拦截) signals from satellites or retasking satellite systems, potentially enhancing global electronic intelligence operations.

No average person wants to figure out whether their favorite calendar software works with their fridge or whether their washing machine and tablet get along.

Many teenagers resort to drugs or alcohol for mental relief.

Many of the world's most climate-vulnerable countries, the majority of which are African or small island states, produce a very small quantity of emissions.

Many of the coolest gadgets this year are the same as the coolest gadgets last year – or the year before, even.

It is hard to say whether it is good or bad.

It has little to do with the quality or taste of cigarettes.

It has little impact on their decision whether or not to quit smoking.

In a study published last year, psychologists coined the term workplace telepressure to describe an employee's urge to immediately respond to emails and engage in obsessive thoughts about returning an email to one's boss, colleagues or clients.

For better or worse, batteries make possible our mobile-first lifestyles, our screen culture, our increasingly globalized world.

But over the last couple of years, and in this one in particular, we are starting to see companies shift from what is the largest screen size, the smallest form factor or the shiniest object and more into what all of these devices do that is practical in a consumer's life.

But now these segments are looking at slower growth curves – or shrinking markets in some cases – as consumers are not as eager to spend money on new gadgets.

Bearded Russian priests offer regular services at the Orthodox church for the 16 or so Russian speakers who spend the winter at the base, largely polar scientists in fields like glaciology and meteorology.

And it is clearly up to the current generation of leaders from high-emitting nations to decide whether they want to be remembered as climate change tyrants or pioneers.

And 29%, the invisible risk group, scored high on three in particular: They spent five hours a day or more on electronic devices.

About 58% of the students demonstrated none or few of the risk behaviors.

There are more than 600,000 professional social workers in the country, and we all either have a bachelor’s degree, a master’s degree or a Ph D in social work.

That’s what hard-working men and women say to justify their lavish vacations, big stereo systems or regular restaurant meals.

So what I’ve done is I’ve taken Sternberg’s three elements of love: intimacy, passion and commitment, and I’ve listed out the different kinds of relationships you would have if you had zero, one, two or three out of the three elements.

People who live, hunt or fish near bird coloniesneed to be careful, the researchers say, The birds don’t mean to cause harm, but the chemicals they carry can cause major problems.

柯林斯高阶英汉双解学习词典释义

CONJ-COORD

（连接两个或两个以上选择的可能性）或，或者，还是

You use or to link two or more alternatives.

例句

CONJ-COORD

（与 either 或 whether 连用，给出另一个选择项）或，还是，就是

You use or to give another alternative, when the first alternative is introduced by 'either' or 'whether'.

例句

CONJ-COORD

（用于两个数字之间表示概数）或，大约

You use or between two numbers to indicate that you are giving an approximate amount.

例句

CONJ-COORD

（用于对刚说过的话进行更正或补充）或者说

You use or to introduce a comment which corrects or modifies what you have just said.

例句

CONJ-COORD

（用于警告）否则，要不然

If you say that someone should do something or something unpleasant will happen, you are warning them that if they do not do it, the unpleasant thing will happen.

例句

CONJ-COORD

（用于证明刚刚所作陈述的真实性）否则，要不然

You use or to introduce something which is evidence for the truth of a statement you have just made.

例句

PHRASE

（表示某事物对即将发生的事没有影响）不管是不是…

You use or no or or not to emphasize that a particular thing makes no difference to what is going to happen.

例句

PHRASE

（用于重复的同一名词之间，表示某事物是否真实对情形没有影响）不管是否有…，无论有没有…

You use or no between two occurrences of the same noun in order to say that whether something is true or not makes no difference to a situation.

例句

英汉词典释义

conj.

（用以引出另一种可能性）或，或者，还是

（用于警告或忠告）否则，不然

（用于否定句，提出两种或多种事物时）也不

（用于两个数字之间表示约略数目）大约

（用于引出解释性词语）或者说

（用于说明原因）不然，否则

（用于引出对比的概念）

英英词典释义

Noun

1. a state in northwestern United States on the Pacific

2. a room in a hospital equipped for the performance of surgical operations;