question n.& v
There is no question about his success.

此句中的question是不可数名词,意为“怀疑,疑问”,这是其最常见的用法。另外它还有其它的用法,如:
① I’d like to question you on your views about the housing problem. (此句中的question作及物动词,意为“问(某人)问题”。)
② His success is out of question.(out of question意为“没问题,办得到的”。)
③ Watching the football match here seems to be out of the question.(out of the question意为“不可能的,办不到的”。)

 

join v.& n.
What club do you want to join?
 此句中的join是及物动词,意为“加入,参加”,这是其最常见的用法。另外它还有其它用法,如:
① The two rivers join at the bridge.(此句中的join是不及物动词,意为“会合,联合,相遇”。)
② The two pieces were stuck together so well that we could hardly see the join.(此句中的join是名词,意为“连接处,接缝”。)