●play (sth) by ˈear1.play (music) which you have heard or remembered but which you have not seen written down不看乐谱弹奏（乐曲）；根据所听过的（或凭记忆）演奏◆She can’t read music very well, so she plays all the tunes by ear. 她不怎么识乐谱，她所有的曲子都是自己听过后凭乐感演奏的。2. ( play it by ˈear) (informal) decide how to act in a situation as it happens or develops, rather than by planning in advance随机应变；见机行事◆You can’t really prepare for the questions the interviewer will ask — you’ll just have to play it by ear, I’m afraid. 你没法准备面试官要问的问题，恐怕只能随机应变了。