spare part
US /ˈsper pɑːrt/
UK /ˈsper pɑːrt/

名词
1.
备用零件, 备件
a duplicate part of a machine or vehicle kept in reserve in case of need
示例:
•
Always carry a spare part for your bicycle.
自行车要常备备用零件。
•
The mechanic ordered a new spare part for the car engine.
机械师为汽车发动机订购了一个新的备用零件。
在 Lingoland 学习这个单词