及物动词
1. 润滑；加润滑油于
If you lubricate something such as a part of a machine, you put a substance such as oil on it so that it moves smoothly.
1. make slippery or smooth through the application of a lubricant
e.g. lubricate the key
2. apply a lubricant to
e.g. lubricate my car
Synonym: lube
3. have lubricating properties
e.g. the liquid in this can lubricates well