拆不開的固定說法
核心畫面縮到最小的單位:一句話短到只有幾個字,但意思仍然只屬於這群人。
idiom, fixed expression · noun · B2
A group of words that go together and have a special meaning — a meaning you cannot work out from the ordinary meaning of each separate word. For example, 'under the weather' is an idiom meaning 'ill'.
慣用語