part interchangeability

例句：

1. 1. The car needs a new part to be repaired.
   这辆车需要更换一个零件来修理。
2. 2. He cut the piece of wood to fit the table.
   他切下了一块木头来适配桌子。
3. 3. The team consists of several parts working together.
   这个团队由几个部分组成，共同工作。