真的?

　　Really? *“真的吗?”。询问对方的语气，也常说Oh, really?

　　He's 38. (他38岁。)

　　Really? (真的?)

　　Are you sure? *“敢肯定吗?”，想要确认的心情，要比上句稍强。

　　你是认真的吗?

　　Are you serious?

　　I want to break up with you. (我想和你分手。)

　　Are you serious? (你是认真的吗?)*有些怀疑对方的语感。

　　开玩笑呢吧?

　　Are you joking?

　　I quit my job. (我把工作辞了。)

　　Are you joking? (开玩笑呢吧?)

　　Do you mean it? (是真的吗?)

　　Are you kidding? (是说着玩吧?) *kid 常来表示“耍弄，开玩笑”。

　　我怀疑。

　　I doubt it. *表示对别人的话抱有怀疑的心情。

　　Do you think you'll get a raise? (你觉得你能涨工资吗?)

　　I doubt it. (我怀疑。)

　　It's doubtful!

　　I don't think so. (我不这样认为。)

　　I wouldn't bet on it.

　　It's chancy. *俚语。

　　It's iffy. *非常随便的说法。

　　听起来可疑。

　　It sounds fishy to me. *fishy 除了表示“鱼的，像鱼的”之外，它还有“靠不住的，可疑的”意思。

　　What do you think? (你怎么想?)

　　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. *smell a rat 为短语，表示“感到有可疑之处”、“事情很可疑”的意思。