play it by ear
憑感覺行事
口語·隨機應變
英文釋義
to make decisions or take actions spontaneously or as the situation develops, without having a specific plan or strategy
例句
We don't have a plan, so let's just play it by ear.
典故來源
源自音樂演奏，指不看樂譜而憑聽覺即興彈奏，后比喻根據情況靈活應對。