1. 词组no matter可独立成句,也可在句中担当成分。如: 1) No matter! 不要紧! 2) No matter, I'll go myself. 不碍事,我自个儿去。 3) No matter if they do not take this factor into consideration. 如果他们不考虑这个因素,那无关紧要。 4) It is (of ) no matter. (no matter在句中作表语或of的宾语。) 这无关紧要。 5) I had something to say, but it's no matter. 我本来有句话要说,但不是很重要。