An objective set of rules which we all agree to accept is necessary for any ordered society.

任何井然有序的社会都需要一套客观公正、为大家所接受的规则。

《柯林斯英汉双解大词典》

For her, books were as necessary to life as bread.

对她来说，书就像面包一样是生活的必需。

《柯林斯英汉双解大词典》

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He said this is necessary for the country to compete among some of the world's fastest growing economies.

VOA: special.2010.08.12

The kind of discipline and self-restraint necessary for an educated mind appears, for him, to be unequally divided among human beings.

那种受过教育者,所必备的纪律与自制，对他而言似乎是不平等地,区隔了人群。

耶鲁公开课 - 政治哲学导论课程节选

It is necessary, he says, for the prince to know well how to use the beast and the man, he writes.

他说，君主有必要清楚的知道,怎样去利用禽兽和人类。

耶鲁公开课 - 政治哲学导论课程节选

However, he also has to complete reforms necessary for Poland to qualify for membership of the European Union (EU) - a move opposed by some coalition partners and likely to result in further economic pain.

BBC: Economic tests for new Polish regime

QDRs have been criticised for coming up with somewhat vague transforming plans while failing to make the savings necessary to pay for them.

ECONOMIST: The Quadrennial Defence Review

When the HAI equals 130, for example, it means that a family earning a median income has 130% of the income necessary to qualify for a mortgage on a median-priced home.

FORBES: Buyback Stocks And A Housing Bottom