1、随机应变
...out of earshot 不在听力所及范围play by ear 随机应变，视情形而定ring a bell 令人想起某件事;听起来耳熟 ...
2、视情况而定
... hit the spot (特指吃了食品，喝了饮料之后)精神完整恢复过来或觉得满意;恢复精神;提精神 play by ear 随机应变，视情况而定 fit as a fiddle 身体很健康 ...
3、见机行事
... out of this world 非常好 play by ear 见机行事，视情形而定 share a common outlook 有单独的观念 ...
4、走着瞧
... plug插播广告 play by ear走着瞧 play ball与(某人)互助 ...
play with by ear随机应便
play it by ear随机应变;见机行事;现场发挥;不用看谱
play something by ear见机行事
play y by ear随机应变;视情形而定
play sth by ear没有人能够凭听觉而不是识谱来演奏乐器
Lets play it by ear让我们随兴所至
I'll play it by ear我将随兴而定
Let's play it by ear让我们随兴所至;看情况吧;顺其自然吧
play by the ear发挥的耳朵;玩耳朵;发挥的耳