mechanical failure

例句：

1. 1. Thecar's engine has a mechanical failure that needs to be fixed immediately.
   这辆车的引擎出现了机械故障，需要立即修理。
2. 2. The machine broke down due to overheating.
   由于过热，机器出现了故障。
3. 3.The team's performance was affected by a mechanical failure during the competition.
   比赛中，团队的表现受到了机械故障的影响。