play it by ear是什么意思？这个俚语本义可不是说玩耳朵，而是不看乐谱就演奏，引申为见机行事。

1.I‘m not prepared for the speech so I have to play it by ear.
我没准备演讲稿，到时候只能见机行事了。

2.If you play it by ear, you can lose your chance.
你如果不事先作好准备，会失去这次机会的。

3.I have not decided what to say when he comes , I will play it by ear .
他来时我不知道该说什么，到时候随机应变吧。

4.In dealing with that unpredictable man, you simply can't follow a prearranged plan. You have to play it by ear.
和那个捉摸不定的人打交道，你简直无法按预定计划行事，只好随行应变。