a way of proving whether something is true or not.决定性考验

　　Example： The joint military exercise is seen as an acid test of the cooperation among the countries concerned.

　　2. Acquaint someone/oneself with something：

　　inform someone of something/make someone familiar with something.使某人认识某事物

　　Examples：

　　（1） We have to acquaint a new worker with the conditions here.

　　（2） As the company's consultant, you must acquaint yourself with its development plans.

　　3. Acquiesce in something：

　　agree to do something； accept something quietly.同意某事；默许

　　Example： After a long time of consideration, the government has finally acquiesced in the open-door policy.

　　4. Be-all and end-all of something, the：

　　the whole of something.某事的全部

　　Example： Learning how to take orders is not the be-all and end-all of good secretarial work. There are more important things to do.

　　5. Be that as it may：

　　even so. 即使如此

　　Example： I know some of you don't like Anna, but be that as it may, you can at least greet her every day.

　　6. Bear a grudge against someone/bear someone a/no grudge：

　　have a/no feeling of anger, dislike, etc. of someone.对某人怀恶意／无恶意

　　Examples：

　　（1） Tony bore a grudge against Aileen because she got the job he wanted.

　　（2） I don't bear anyone a grudge.

　　（3） I bear him no grudge. Why is he so hostile？

　　7. Can't/Couldn't go wrong：

　　sure to make a success of something or not make any mistake.错不了

　　Example： You know the ways and means, don't you？ You just can't go wrong.

　　8. Can't hear oneself think：

　　one is irritated by too much surrounding noise.听不到自己在想什么（喻周遭太吵闹）

　　Example： Everyone in the lobby kept talking louder and louder until I couldn't hear myself think.

　　9. Can't help but do something：

　　unable to choose any other course or action.不得不

　　Example： Since there is no taxi in this area, we can't help but walk back home.

　　10. Death is the great leveller：

　　death makes us all equal.“死亡”是伟大的平等主义者

　　Example： As there won't be any distinction between wealth and poverty, greatness and humbleness, etc. among the dead, death is the great leveller.

　　11. Death to someone/something：

　　bad for or fatal to someone/something.

　　对……很不好／致命的

　　Examples：

　　（1） This type of detergent is death to my sensitive skin.

　　（2） Living in such a city is death to hysterical people； it was too noisy there.

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