学期: term, semester...
支流: tributary (river)...
爆: to explode or burst, to quick fry or quick boil...
公益: public good, public welfare...
能耐: ability, capability...
专题: specific topic (addressed by a book, lecture, TV program etc), article, report or program etc on a specific topic...
会面: to meet with, meeting...
缘故: reason, cause...
平时: ordinarily, in normal times, in peacetime...
接收: reception (of transmitted signal), to receive, to accept, to admit, to take over (e.g. a factory), to expropriate...
