1. Don't we all? 谁不是呢？                                                  

  example:A:I really wish I don't have to work on Friday.                        

                 B:Don‘t we all？

2.that's ......for you （某人）就是这样

  example：A：I can't believe Erric showed up later for work again.

                 B:That's Erric for you —I am not surprised at all.

3.letdown n.失望

  example：A：I'm so disappointed that you didn't get that job.you were prefectly   qualified for it .

                  B:Yeath. it's a real letdown.

4.let......dowm 让......失望

  example：A:you let me down again.

                 B:I'm sorry.I'll remeber your birthday next year.

5.lossen up!放松点！看开一点。

  example：A：I'm always worried that I won't make it into medical school.

                 B:You really have to loosen up and enjoy life a little more.

6.hit on......喜欢上某人。

  example：A:I don’t know why Barbara never talks to me

               B:It's because you are so obviously hitting on her.

7.get carried away情绪失控

  example：A:Why did you yell at your mom like that?

               B:she make me angry and I just got carried away.