Since 1991, parents have been advised not to put their infants down to sleep in the prone position.

He is unsuited for that position.

他不适合担任那个职务.

in a position of authority

当权

She was a woman of high position in the government.

她曾是个在政府中占有重要位置的女人.

No matter how high one's position, he must never be a law unto himself.

无论一个人的职位有多高, 都绝对不能独断专行.

She found it necessary to reassert her position.

她觉得有必要重申她的立场。

The best way is to prevent disease.

预防疾病才是上策.

Nobody can prevent our getting married.

谁也阻止不了我们结婚.

I'm trying to prevent the reversion of my garden to nature.

我正在试图防止我的花园返回一片荒芜的自然状态.

We must prevent the trouble from spreading.

我们必须防止这个乱子扩大.

attempts to prevent a recurrence of the problem

防止问题再次发生的努力

We spoke to little purpose — his mind was clearly made up already.

我们说的话几乎不起作用,他显然已下定决心了.

I purpose going to London.

我想去伦敦.

I do not purpose that he will have his own way.

我不准备让他一意孤行.

I find the best tool for the purpose is a pair of shears.

我发现做这件事最得力的工具是一把大剪刀。

The book is valuable for my purpose.

这本书对我很有用.

The purpose of intelligence is to provide information on how the enemy can be beaten.

谍报的目的是提供如何打败敌人的信息。

Most of them are destroyed because they've served their purpose.

它们中大多数在完成使命后被销毁。

Infrared is widely used in industry and medical science.

红外线广泛应用于工业和医学科学.

The operation was a marvel of medical skill.

这次手术是医术上的一个奇迹.

Medical facilities are being reorganized and upgraded.

正在对医疗设施进行重组和升级。