knuckle

中文： 用指关节擦、用指关节击打

1. To apply pressure, or rub or massage with one's knuckles (noun sense 1). (transitive) · He knuckled the sleep from his eyes.· She knuckled her eyes in disbelief.
2. To strike or punch. (slang, transitive)
3. To bend the fingers. (intransitive)
4. To touch one's forehead as a mark of respect. (intransitive)
5. To yield. (figuratively, intransitive)
6. To land on the knuckle (noun sense 9) of a curve of a slope, after a jump off a ramp that precedes the slope.

He/she/it knuckles · 过去式 knuckled · 过去分词 knuckled · -ing形式 knuckling