until

英[ənˈtɪl]美[ənˈtɪl]

prep.到…时，直到…为止；

英语六级真题

Historically, scientists have objected to sharing for many reasons: it is a lot of work; until recently, good databases did not exist; grant funders were not pushing for sharing; it has been difficult to agree on standards for formatting data; and there is no agreed way to assign credit for data.

Some Chicago teachers seem to think that they shouldn't be held accountable until poverty is solved.

A full 18 percent have even returned devices until they feel they can get safer guarantees against having their sensitive information hacked.

The outer layers of the volcano were worn away until the hard core stood completely exposed.

Its sheer rock sides sweep up from a broad base until they cut off abruptly at the flat summit.

While that may make suborbital travel safer, it would add significant cost and complexity to an emerging industry that has until now operated largely as the playground of billionaires and dreamy engineers.

But if it was known that Black people were viewed differently from African Americans, researchers, until now, hadn't identified what that gap in perception was derived from.

The first is"If I purchase a corporate bond,do I have to hold it until the maturity date?

Kapur points out that while the model adopted by many teachers when introducing students to new knowledge―providing lots of structure and guidance early on, until the students show that they can do it on their own―makes intuitive sense, it may not be the best way to promote learning.

Despite bottoming out in 1933, the Depression didn't end until World War II.

Yet until recently the worst forecasts were almost exclusively linked to direct human activity, such as clear-cutting and burning for pastures or farms

Until the early 1990s nobody much thought about whole populations getting older.

Look for New York in the left-hand column and follow it across until you find the hour listed in the Boston column.

Three, just until the weekend

Unfortunately, most of the early popular African-American writers have been all but forgotten in modern times until now.

We can tear apart the great grass cover of the western plains and pour toxic chemicals into the soil until the soil is dead and blows away in the wind

With no known vaccination or cure available, it seems only a matter of time until another epidemic erupts.

M : sorry to have kept you waiting ,Madam , I've located your luggage, it was left behind in Paris and won't arrive until later this evening W : oh ,I can't believe this ,have it been to delivered to my hotel then ,I guess Q :what happened to the woman's luggage

Based on answers to questions regarding their job hunting strategies and career decisions, he divided the students into two groups: maximizers, who consider every possible option, and satisficers, who look until they find an option that is good enough

In the case of Facebook, the company says data may hang around until the URL in question is reused, which is usually "after a short period of time", though obviously that time can vary considerably.

Anyway, I won't need it until Friday night.

As stories go through the chains of people, they are refined, corrected and sorted out until they come finally to me and I have a chance to read through most stories before I go on the air.

At least the slides were good, that is, until the bulb in the projector blew, and she had to finish the talk with no illustrations.

But she says nations will not make progress fighting hunger and poverty until they begin to focus on those critical first thousand days.

During months without water under a harsh sun, they wither, shrink and contract until they look like a pile of dead gray leaves.

Europeans did not know of them until the 1500s, when Portuguese ships arrived on the coast of what is now sierra Leone.

historically, scientists have objected to sharing for many reasons: It is a lot of work; until recently, good databases did not exist; grant funders were not pushing for sharing; It has been difficult to agree on standards for formatting data; and there i

I feel like I could stay by myself until I'm 100.

It becomes a breakdown process where everything ends up accelerating until it's all gone.

It wasn't until I entered the corporate world that I realized, for me at least, being friends with colleagues didn't emerge as a priority at all.

It will decide on the Weddell Sea sanctuary proposal at a conference in Australia in October, although a decision on the peninsula sanctuary is not expected until later.

Most seeds can wait out the dry, unwelcoming seasons until conditions are right and they sprout.

Ogbeh says experts are investigating how to control the pests damage and prevent its spread, which has gone largely unchecked until now.

Problems surround the use of machines to spot deception, at least until it has been rigorously tested.

She says she is aware that plenty of people do not want to eat genetically modified crops, but she is pushing ahead with every available tool until one works.

The liquid is maintained above its melting point until steam is required, at which point the liquid is allowed to turn back into a solid, releasing its stored energy.

The misconception of resilience is often bred from an early age, parents trying to teach their children resilience might celebrate a high school student staying up until 3am to finish a science fair project.

The more people are on their phones, the fewer people are talking until finally you're the only one left not reading email or checking Twitter.

The Wallaces didn't accept advertising in the US edition until 1955 and even then they didn't allow any ads for cigarettes, liquor or drugs.

They waited until the babies got bored and inverted their gaze from the face.

Until then they've been giving everything they have and at that moment they know it's over.

Up until then, I hadn't truly realized just how expensive an education can be.

When considering the amount of insurance for the mother with dependent children, substitute child care is a need that should be planned for until the children can care for themselves.

柯林斯高阶英汉双解学习词典释义

PREP

直至；直到；在…之前

If something happens until a particular time, it happens during the period before that time and stops at that time.

例句

PREP

（与否定词连用）直到…之前，直到…为止，除非

You use until with a negative to emphasize the moment in time after which the rest of your statement becomes true, or the condition which would make it true.

例句