英语释义
1. to make smooth or slippery
2. to apply a lubricant to
3. to act as a lubricant
4. to make (something) smooth or slippery to apply a lubricant to (something, such as a machine or a part of a machine)
5. to apply oil or grease to in order to make smooth or slippery
Mechanics lubricated the gears.
6. to make smooth, slippery, or oily in motion, action, or appearance
lubricate the eye lubricate the skin