idioms俚語：A group of words established by a usage as having meaning not deducible from those of the individual words, basically a figure of speech.

1. 下大雨rain cats and dogs= rain heavily

2. 視而不見turn a blind eye=refusing to acknowledge something which one knows to be real

3. 極度傷心/渴望eat your heart out=to feel great sadness

4. 身處困境in a pickle= to be in a troublesome situation

5. 情況急轉(zhuǎn)直下It's all downhill from here=the situation will only worsen

6.喜不自勝tickled pink=to be delighted

7. 死也不會...（形容害怕尷尬而絕不會去做）wouldn't be caught/ seen dead=to express the extent of which one would never be in something

8. 非常幸福happy as a clam=extremely joyful

9. 偽善者；假正經(jīng)的人goody two-shoes=someone who is overly virtuous.

10. 小菜一碟piece of cake/pie=an easy or simple task