词典释义：
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A Magic 8 Ball? You can't be serious. You can't make this decision with a toy. Oh, it's not a toy.
神奇8号球？你开玩笑吧？怎么可以用玩具决定命运？这可不是玩具。
《Friends Season 5》《老友记 第五季》
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Howard, please. This is Stephen Hawking. Perhaps my only intellectual equal. Oh, you can't be serious.
霍华德，求求你了，这可是史蒂芬·霍金啊，也许是唯一一个智商和我相当的人。你别搞笑了。
《The Big Bang Theory Season 5》《生活大爆炸 第五季》
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You can't be serious. 'Cause I messed up and made out with a girl, you're gonna do the same with a random guy?
你会不是认真的吧，就因为我一时糊涂跟别的女人亲热了，所以你也要随便跟别的男人亲热吗？
《The Big Bang Theory Season 9》《生活大爆炸 第九季》
双语例句
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You can't be serious!
你不是认真的吧！
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Come on, you can't be serious.
跟我来，你是说着玩的吧。
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Bill: You can't be serious.
比尔：你不是开玩笑吧。
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No, you can't be serious.
不，你不是认真的吧。
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You can't be serious.
你不是认真的吧。