spare kit

• 备用工具箱

spare kit的用法和样例：

例句

1. There is a repair kit provided in the boot of each car.
   每辆车的行李箱内都备有工具箱。
2. From then on we sent along a tool kit and instruction manual with every pump.
   从那时起，每一部水泵我们都附送一个工具箱和一份说明书。