radio /ˈreidiəu/ I. n. 1.［u］无线电，无线电广播：send a message by radio 拍发无线电报 We heard the news over/on/upon the radio.我们从无线电广播中听到这条新闻。2.［c］收音机(pl. radios)：turn on (off) the radio 开(关)收音机；turn up (down) the radio 拧大(小)收音机I’m going to have my radio repaired.我要找人修我的收音机。 ‖II. vt. & vi. 用无线电传送：radio the message at once 把这消息马上发电报 They radioed London for advice.他们向伦敦发电报咨询。The ship radioed for help. 轮船发电报求援。