Definition: a piece of a machine or vehicle Level: B2
机械师检查了飞机的发动机部件。
The mechanic inspected the aircraft's engine ___part.
长途驾驶时携带备用零件是明智的。
It's wise to carry spare ___parts when driving long distances.
多亏了我们带的备用零件，汽车很快修好了。
Thanks to the spare ___parts we had, the car was quickly repaired.
