leave at the altar
在婚禮當天拋棄伴侶；突然取消婚禮
口語·描述婚禮取消或背叛
英文釋義
to cancel or break off a planned wedding or commitment at the last minute
例句
He left her at the altar, and she was heartbroken.
典故來源
源自婚禮習俗，指在教堂圣壇前取消婚禮，象征突然背叛。