prefer to do sth. rather than do sth. 宁愿…而不愿…

No one would have time to read or listen to an account of everything there is going on in the world.

There is a real possibility that these animals could be frightened, should there be (if there should be) a sudden loud noise.

Henceforth 从今以后

in the way意为“妨碍(某人)

The students expected there to be more reviewing classes before the final exams.?动词expect后必须接动词不定式作其宾语

understand better than... 对…非常理解

I understand better than most the enormous amount of preparation that staff must put in under pressure to meet the deadline.

contribute to (doing) sth.有助于，促成

I’m sure your suggestion will contribute to solving the problem.

It is no good doing sth做…没用?

lest意为“以免”，后接虚拟语气should+动词原形

She always put her medication on the top of the shelf lest the children should take it by mistake.?

attribute to把…归因于

contribute to有助于，促成

on principle根据行为准则；按照原则

in principle原则上；基本上

When I got out of the car and walked about among them, except for one old man who shook his head disapprovingly¹, they all began to cheer.

except for除…以外后接名词

see that 留意…；负责…；务必…

except that 除去…之外后接句子

provided that 倘若，在…条件下

no(not)...but...没有……不……?

no(not)...without...没有……不，除……不

no(not)...unless没有……就不……

not...until直到……才……

a point of honor 涉及名誉的事情

in one’s honor为某人的荣誉”

on one’s honor以名誉担保

an honor光荣的人或事

There is no one but knows it.没有一个人不知道此事。?

can not与副词too,enough, sufficiently², over, too much等词连用时，意为“无论怎样也不过分”，“越…越”。例如：?

You cannot be too careful.你越仔细越好。?

We cannot praise him too much.我们无论怎样赞扬他也不过分。

to know better than to do sth.表示责备应该知道不该做某事

You should know better than to leave your little sister at home by herself.?