“润滑剂”造句

我认为幽默是人生的上好润滑剂。
I think humor is a great lubricant for life.

绝大多数机械装置都需要用油作为润滑剂。
Most mechanical devices require oil as a lubricant.

把润滑剂涂在轮子上使它转起来更零活一些。
You put lubricant on a wheel to make it turn more easily.