1.the crux of sth（难题、问题的）关键nub, key
The crux of the matter was economic policy.问题的关键在于经济政策。
2.It clicked that我突然意识到
It clicked me that I was trapped into his pitfalls.我突然意识到我陷入了他的陷阱中
I come to realize that...
It occurs to me that
I recognize more and more that我越来越意识到
3.ditch classes逃学 skip classes;
play traunt；play hookey逃学
run away from home离家出走
be grounded at home禁足在家
4.a miscellany of sth各色各样的miscellaneous
an assortment of sth
The show is a miscellency of song and dance.这是一场基友唱歌又有跳舞的混合表演。
5.地道口语表达
You can speak my language.你了解我
Are you out of mind?你疯了吗？
buy into that culture开始接受这种文化
It really hurt me when...当……，这真的使我很难受
