wheels fall off
事情出錯或失敗，計劃崩潰或破裂
口語·描述計劃或項目突然失敗
英文釋義
to experience a sudden failure or breakdown, typically in a situation that was previously successful or stable
例句
The project was going great until the wheels fell off last week.
典故來源
源自車輛行駛中車輪脫落導致事故，比喻原本順利的事情突然失敗。