not have a leg to stand on
無法提供合理且有力的證據或理由支持自己的觀點、主張或決定
口語·表達缺乏依據
英文釋義
to have no evidence or argument to support one's position; to be unable to prove or justify something
例句
Without evidence, you don't have a leg to stand on in court.
典故來源
源自16世紀法律術語,比喻論點像無腿的人站不穩。