Chinese: 当然,他知道这只是个玩笑,所以他"嗯?"了一声一笑置之,但是他觉得非常厌烦。(我的意思是,你不要再说这样的事情了,即使它只是个玩笑话!）
English: Of course he thought it was a joke and let it slide with a "hm?" but he was seriously annoyed. I mean, just don't say things like that even as a joke!