英语习语讲与练(10)

摘要

1.to make sure:确信,证实(也可以说 tomakecertain,意思是 to be sure,to ascertain)。如:Please make sure that you tum off the radio beforeyou go out.Could you make certain of the time?I don’t wantto miss that.2.now and then:偶尔,不时,有时(也可以说 now and again,at times,from time to time,off andon,once in a while)。now and then 和 once in a while