upset the apple cart
打翻了蘋果車;破壞了原本正常的情況或計劃
口語·形容打亂原有安排
英文釋義
to disrupt or spoil a plan or situation
例句
His sudden resignation really upset the apple cart for the project.
典故來源
源自馬車運蘋果時翻車會打亂一切,比喻破壞計劃或秩序。