当真

Don’t take it so seriously — it was just a put-on.

别当真—开个玩笑而已。

Don’t be fooled by all his complimentary remarks—they were all said with tongue in cheek.

别让他的恭维话给蒙骗住了——那些话可能当真。

Surely you’re not telling me, in all seriousness, that you want to work in a factory for the rest of your life!

你当真说你愿意一子都在工厂干下去，开玩笑吧！