switch off片语动词KK [swɪtʃ ɔf] /swɪtʃ ɔf/发音片语动词1关掉、关闭可拆开Please switch off the lights before you leave the office.离开办公室前请把灯关掉。2放空、分心、不专心口语He switches off completely whenever we discuss politics.每次谈到政治,他就完全放空了。3放松、休息口语I find it hard to switch off after a long workday.忙了一整天,我很难放松下来。用这个字练口说→