burn fingers
意外或失敗的經(jīng)驗使某人非常了解某個行為或決策的風險或危險
口語·形容因冒險或無知而吃虧
英文釋義
to suffer negative consequences or get hurt by one's own actions or decisions
例句
Investing without research can burn fingers, as many beginners learn the hard way.
典故來源
源自被火燙傷的實際經(jīng)歷，比喻因無知或冒險而遭受損失或教訓(xùn)。