1.Cheating is considered as such a big problem in the American universities that how to deal with it has become a topical issue.
作弊在美国大学里被认为是一大问题，如何对付它已成为教师会议上的热点话题。
2.Your responses are important in enabling me to obtain as full a research as possible of this topical issue.
您的回复将会很大程度上帮助我研究这个问题。
3.Then there is the particularly topical issue of the Federal Reserve itself.
接下来就是尤为重要的美联储（Fed）本身的问题了。