You're joking. Are you serious?

你在开玩笑吧。你是认真的吗？

Are you serious?

你是认真的吗？

I was thinking, Are you serious?

我在想，你是认真的吗？

Andy: a fact! Are you serious?

安迪：事实！你是当真的吗？

Wait. what, are you serious?

等等 什么 你是认真的吗？

Are you serious about this?

你是玩真的吗？

Good. What are you serious.

好。什么你是认真的。

Dave: Are you serious?

戴夫：你是认真的吗？

Are you serious about him.

你对他是认真的吗？

"Are you serious?" said Minmei upset.

“你是认真的？”明美不安地问道。

Are you serious, John?

你是认真的吗，约翰？

Jack: Are you serious?

杰克：你在开玩笑吧？

Gr: Are you serious?

格：你是说真的？

I never said I would kill you, are you serious?

我没有说过我要杀你，你是认真的吗？

Fiona: Ah! I can believe it. Are you serious?

女：啊！我简直不敢相信，你是认真的吗。

Are you serious? Oh. my gosh. Congratulations.

真的吗？哦，天啦，恭喜你。

Are you serious in meditating a journey to Egypt?

你是在认真考虑到埃及旅行一次吧？

Dave: Are you serious? How? How did you manage that?

戴夫：你是认真的吗？怎么？你是怎么办到的？

Are you serious? How could that kind of thing happen?

你是认真的吗？怎么会发生那样的事？

What? Are you serious? You'd defect to our archrival!?

什么？你是认真的吗？你要向敌人设诚！ ？

Are you serious? It is always crowded with many people.

你是认真的吗？那里总是挤满人。

Are you serious? You haven't even been anywhere on vacation?

没开玩笑吧？你休假时哪儿也没去过吗？

LL: Oh, that's not too - WHAT? OUR future plans? Are you serious?

其实也没有那么严重，无非是问问你的工作和生活情况，还有我们两人今后的打算。