on a whim片语KK [ɑn ə wɪm] /ɑn ə wɪm/发音片语1一时兴起、心血来潮、突然起意We booked the flight to Lisbon on a whim.我们一时兴起就订了飞往里斯本的机票。2随意、任意、随性The manager changes the schedule on a whim.那位主管随意更动排班表。用这个字练口说→