He's 38
Really? /Are you sure?
I want to break up with you. 分手
Are you serious? 你是认真的吗?
I quit my job. 我把工作辞了
Are you joking? 你开玩笑了吧！
Do you mean it? 是真的吗?
Are you kidding?
Do you think you'll get a raise?
I doubt it. 我怀疑. /It's doubtful!
I don't think so
I wouldn't bet on it
It's chancy. *俚语。
It's iffy. *非常随便的说法
What do you think?
It sounds fishy to me. 听起来很可疑。
It sounds suspicious to me
It sounds funny to me
Something's fishy
I smell a rat. *很可疑
He said she is his sister
I won't buy that story. 我不信他的话
But, it's true
I don't buy it
I won't believe that story
She told me she likes you
Do you think she's serious? 你认为他是当真的吗?
I don't take him too seriously. / I don't take him very seriously. 我不把他的话太当真
I don't pay much attention to what he says
What makes you say that?
I don't believe him. 我不相信他 /I don't trust him
I don't think he is telling the truth
I think he is lying
I won two tickets to Hawaii!
It's too good to be true. 太好了吧、难以置信（有这么好的事? ）
It's so unbelievably good that there has to be something wrong
Nothing this good ever happens, it must be a mistake
It can't be! It's too good to believe!