spares
n. 备件，备品
例句
The solution was to get a message to Voyager I to instruct it to use spares to change the failing parts.
解决办法是给旅行者1号发信息，指示它使用备件更换故障部件。
It can be difficult to get spares for some older makes of car.
有些旧型号汽车可能不好买配件。
《牛津词典》
The reel comes complete with a set of spares for all the working parts.
那个卷轴配有一套所有运行部件的备用件。
《柯林斯英汉双解大词典》
