当他决定试一下的时候，主持人跟他开了个玩笑，说他会失去平衡并猜不出他的体重。

When he decided to try the host began to poke fun at him that he would lose his poise and not be able to guess his weight.

youdao

答：流行病学家都是“反复嚼数字的人”，就像会计一样，但没有会计的个性(他开了个玩笑)。

A: Epidemiologists are "number crunchers" like accountants, minus the personality [he jokes].

youdao

第一次，爸爸无法举起一根重木时，他只是开了个玩笑；但那天晚些时候，我看到他独自在外，用力的想举起木头。

The first time he couldn't lift a heavy log, he joked about it; but later that same day I saw him outside alone, straining to lift it.

youdao

I know you don't remember that far back, but in about the second lecture I made a joke of Professor Guttag which, you know, you didn't laugh at, he didn't laugh at, that's okay.

我知道你们可能不记得了，但是在大约是第二节课,我对Guttag开了个玩笑，你们懂得，你们没笑，他也没笑，这没什么。

麻省理工公开课 - 计算机科学及编程导论课程节选