1．落后,落伍 fall behind , 落后于时代behind the times
2．the news , the truth , the fact , the idea后用that引导同位语从句
3．信不信由你believe it or not , 坦率地说frankly speaking=to be frank
4．属于 belong to (无进行时,无被动) The book belongs to me
5．受益,获益于benefit from / benefit sb a lot
6．最好做某事情 had better do sth / had better not do sth
7．It is better to do sth / It is better not to do sth
8．not a bit=not at all 一点也不 , not a little=very非常
