verb问,提问;怀疑,质疑
noun问题;(待处理的)问题,议题;怀疑,质疑;讨论中的;不可能
verbto ask somebody questions about something
verbto feel doubt about something
nounsomething that you ask
nounsomething that you need to deal with; something that is being discussed
noundoubt about something
nounthat we are talking about
nounnot possible