necessity
necessity
英[nəˈsesəti]美[nəˈsesəti]
n.必要，需要，必需品，不可避免的情况；
复数：necessities;
例句
We're going to focus on the relationship between freedom and necessity.我们将集中讨论自由和必要性之间的关系这一问题。
He urged the necessity for immediate action.他强烈要求立即采取行动。
Is it a logical necessity that higher wages will lead to higher prices?工资高物价就高, 这是合乎逻辑的必然规律吗?
Telephone is now a household necessity.现在电话是一种家庭必需品。
You must understand the necessity of education.你必须懂得教育的必要性。
Necessity is the mother of invention.需要是发明之母。
I look upon this as an absolute necessity.我认为这是绝对必要的。
Necessity and oportunity may make a coward valient.需要和机会可能使懦夫变成勇士。出自：英语谚语
Necessity (or Need) has (or knows) no law.需要面前无法律。出自：英语谚语
Necessity is the mother of invention。需要是发明之母。出自：英语谚语
英语六级真题
Many consumers wonder about the necessity of having their fitness monitored.
出自-2016年12月阅读原文Globally, knowing more than one language is viewed as an asset and even a necessity in many areas.
出自-2013年12月阅读原文Travel has become a necessity.
出自-2011年6月听力原文Andre Schubert, a researcher of the Institute for Science Policy Research, says that the rising collaboration is partly out of necessity.
2019年6月六级真题（第二套）听力 Section CThis necessity comes with a rise of big science.
2019年6月六级真题（第二套）听力 Section C柯林斯高阶英汉双解学习词典释义
N-UNCOUNT
必然;必要
The necessity of something is the fact that it must happen or exist.
例句
There is agreement on the necessity of reforms...对改革的必要性已经达成了共识。As soon as the necessity for action is over the troops must be withdrawn...一旦*事行动的必要性不复存在，*队就必须撤出。N-COUNT
必需品;必不可少的事物
A necessity is something that you must have in order to live properly or do something.
例句
Water is a basic necessity of life.生命离不开水。...food, fuel and other daily necessities.食物、燃料和其他日常必需品N-COUNT
不可避免的情况(或行动)
A situation or action that is a necessity is necessary and cannot be avoided.
例句
The President pleaded that strong rule from the centre was a regrettable, but temporary necessity.总统辩解说，实行高度的中央集权虽不尽如人意，但暂时来说却是必要的。英汉词典释义
n.
必要(性); (迫切)需要
You must understand the necessity of education.你必须懂得教育的必要性。必需品
Telephone is now a household necessity.现在电话是一种家庭必需品。自然规律
Is it a logical necessity that higher wages will lead to higher prices?工资高物价就高, 这是合乎逻辑的必然规律吗?英英词典释义
Noun
1. the condition of being essential or indispensable
2. anything indispensable;
"food and shelter are necessities of life""the essentials of the good life""allow farmers to buy their requirements under favorable conditions""a place where the requisites of water fuel and fodder can be obtained"行业词典
医学： 必需品：必需或不可缺少的；
哲学： 必然性；
法律： 必要性；
