n. a thick fatty oil (especially one used to lubricate machinery)
v. lubricate with grease
n. 脂肪, 兽脂, 油脂, 贿赂
vt. 涂脂于, 贿赂
1. I need to grease the hinges on the door to make it open smoothly.
我需要给门的铰链上油，以便它能顺畅地打开。
2. The mechanic used grease to lubricate the engine parts.
机械师用润滑脂给发动机部件上油。
3. Be careful not to get grease on your clothes while cooking.
在烹饪时要小心不要把油污弄到衣服上。