出国留学网雅思小编为大家整理了兰州雅思：雅思听力高频词汇，供大家参考。B: I see. Then there is nothing to worry about after all.around the clock 24小时不停 Martha studied around the clock for management exam. as far as I know 就我所知 at home with 对…很熟悉 She is at home with problems like this. ...