主要内容：

1.一词多意，或者是遇到了idioms。
Tried If you want to solve the problem, you’d better follow those tried and trusted methods. Trying Being an extra in the movies was his trying period in his career.
2.文化背景。
Rachel: Guys! Guess what, guess what, guess what, guess what! Chandler: Um, ok... the... the fifth dentist caved and now they're all recommending Trident? That is from the commercial where 4/5 dentists recommend Trident
3.语法 就举个两个比较容易理解的句子大家就懂了。
She is too proud to hang out with guys like us. Were she here, she would agree with us.