保养的英文简称为maintenance。
双语例句：
1、精心保养可延长汽车寿命。
Careful maintenance can extend the life of your car.
2、这些机器将来会需要备件和维修保养。
In the future the machines will need spare parts and maintenance.
3、除了给轮胎充气外，我没做过任何汽车保养。
Other than blowing up a tyre I hadn't done any car maintenance.
