dust off片语动词KK [dʌst ɔf] /dʌst ɔf/发音片语动词1掸去灰尘、擦拭干净可拆开She dusted off the old photo album before opening it.她先掸去旧相簿上的灰尘,才把它打开。2重新启用、翻出来用可拆开He dusted off his résumé and started applying for jobs.他把履历翻出来更新,开始投递求职。3温习、复习可拆开I need to dust off my Spanish before the trip.出发旅行前我得把西班牙语温习一下。用这个字练口说→