knock sb up1.敲门唤醒;敲门招呼:Tourists asked the hotel waiters to knock them up early next morning,for they wanted to catch an early train.旅游者们请旅馆侍者转天早晨早早唤醒他们,因为他们想赶一趟早车。2.使筋疲力尽:After taking a long-distance train day and night,passengers were all knocked up.在日日夜夜搭乘一辆长途列车以后,旅客们都筋疲力尽。 |