make smooth and able to move or be moved easily;put oil or an oily substance into (the moving parts of a machine)
"the liquid in this can lubricates well"
"lubricate my car"
"lubricate the key"
All molluscous animals secrete a mucous fluid to lubricate the skin.
出自: R. Tate
Wax is used to lubricate the moving parts.
出自:Practical Woodworking
她用一种洗涤剂润滑双手。