Let's play it by ear.

Let's play it by ear.
這句話是什麼意思勒???
如果照字面上去翻
就會變成"讓我們用耳朵玩它"
這看起來很怪
其實它真正的意思是"當場再決定怎麼做吧"

ex:
Edward: Do you have any plan for the trip?
Hubert: No. Let's play it by ear.