knuckle

'nʌkl

Collins 1

n. a joint of a finger when the fist is closed
v. press or rub with the knuckles
v. shoot a marble while keeping one's knuckles on the ground

n. 指节, 蹄爪, 膝关节
v. 以指节打, 以手指射

Collins 星级

10,269

BNC 频率

9,033

使用频率

knuckle 并没有明显的词根词缀，但可以注意到它的发音中包含了“kn-”这一组合，许多以“kn-”开头的单词（如“know”）与手部动作相关。

例句

1. She hit her knuckle on the table by accident.

她不小心把指关节撞到了桌子上。

2. He cracked his knuckles before starting the game.

他在开始比赛前掰了掰指关节。

3. The doctor examined her swollen knuckle carefully.

医生仔细检查了她肿胀的指关节。