I don't know what to do.

　　Don't worry, I'll help.

　　I'm at a loss as to what to do.

　　I'm unable to decide for myself.

　　What shall I do? /What should I do?

　　What am I supposed to do? 我该怎么办? *be supposed to计划做…

　　I don't know. Just relax, I'll help you.

　　What am I going to do?

　　We can't finish our proposal in time.

　　We are in trouble.

　　We're in big trouble.

　　Do you like the new computer system?

　　No, it's a hassle. 不喜欢，它很麻烦

　　It's a pain in the neck.

　　It's a pain in the ass. *低俗的说法。

　　It's a lot of trouble.

　　What should we do?

　　I don't know. It's really a difficult problem.

　　It's big problem.

　　I don't know what to say.

　　I'm at a loss as to what to say.*困惑

　　I have a full house.我是同花顺(打牌时)

　　You got me. 这下可难住我了

　　I don't know.

　　I guess you're right.

　　You win. /That beats me.

　　He's a nuisance. *他特招人讨厌

　　You asked for it. 自作自受

　　You're stepping on my foot.

　　Oops! I'm sorry. 哎哟! 对不起

　　I made a mistake. /My mistake.

　　Oh, no! I missed the flight.

　　You did? 真的?

　　Ah, man! *man表示兴奋的和吃惊

　　Oh, my goodness! /Oh, my gosh!

　　Good heavens!

　　We have to decide what to do.

　　That's the hard part. 这正是难点

　　That's the difficult part.

　　I feel guilty. I was mean. 我太刻薄了，我感到很内疚

　　Don't worry about it.

　　It's all my fault.

　　I feel bad about it.

　　I feel horrible.

　　I feel terrible.

　　You look puzzled. 你看来很困惑

　　I can't understand this machine.

　　You look confused.

　　The idea haunts me.那个念头总是萦绕着我

　　I can't get rid of the idea.

　　I can't get it out of my mind.