be like a fish out of water
不適應或不習慣于某種環境，感到尷尬或不自在
口語·形容格格不入或尷尬
英文釋義
to feel uncomfortable or awkward in a particular situation or environment
例句
At the fancy party, he felt like a fish out of water in his casual clothes.
典故來源
源自魚類離開水無法生存的自然現象，比喻人處于陌生環境的不適感。