crack knuckles 弄响指关节
bare knuckles 赤手拳头
skin on knuckles 手指关节皮肤
sore knuckles 酸痛的指关节
knuckle injury 指关节受伤
knuckle joint 指关节
bloody knuckles 流血的指关节
hit with knuckles 用指关节击打
A: Why are your knuckles red?
A：你的指关节为什么是红的？
B: I was practicing boxing at the gym.
B：我在健身房练拳击。
1) 指手指或脚趾的关节部位
2) 常用于描述拳头或击打动作相关部位
3) 可指关节突出或可见的部分结构
1. 手指或脚趾连接处的关节
2. 手指弯曲时突出的关节部分
noun
1. The joints in the fingers, especially where they join the hand, or the corresponding joints in the toes.
Synonym: finger joint, joint