verb事关紧要,要紧;重要
noun问题,事情;情况;事实上,其实;(出问题或闹得不愉快的)原因,理由;不论…,无论…;不管…
verbto be important
nounsomething that you must talk about or do
nounwords that you use when you say something true, important or interesting
nounthe reason why somebody is unhappy, upset, or has a problem
nounwords that you use to say that something is always true