I think Tom is more s_____ than Jack.He does not laugh as Jake do_英语解答

I think Tom is more s_____ than Jack.He does not laugh as Jake does.

人气：375 ℃　时间：2019-11-08 09:38:11

解答

我觉得应该是 serious 吧,
这句话的意思是我认为汤姆比杰克更严肃,他不像杰克那么爱笑.