音标：[ˈnʌklz] ；

n. （指人）指关节( knuckle的名词复数 ); （指动物）膝关节, 踝
v. （指人）指关节( knuckle的第三人称单数 ); （指动物）膝关节, 踝

n a small metal weapon; worn over the knuckles on the back of the hand
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

词型变化：名词复数形式 : knuckless

knuckle的用法和样例：

例句

用作名词(n.)

Our fingers bend at the knuckle.我们的手指在指关节处弯曲。
Guidry had the 1 of the best sliders ever and should teach him, and Moose should teach him the Knuckle curve.古得利已经有了史上最厉害的滑球，必须要好好传授他，然后轮到穆西纳，也必须要教他指关节区球。

用作动词(v.)

It's time to knuckle down to work.该开始努力工作了。

词汇搭配

knuckle ball[棒]慢速变化球...
knuckle under认输
knuckle down(向某人)屈服...
near the knuckle近乎下流,近乎粗鄙...
knuckle guard铰链罩,关节罩...
knuckle buster螺帽扳手,月牙扳钳...
knuckle bushing关节衬套
knuckle part拳头指节部分...
knuckle gearing圆齿齿轮装置...
steering knuckle转向关节
knuckle support关节支架
knuckle drive铰节传动
knuckle rod活节杆,副连杆...
knuckle bearing铰式支座,球形支座,...
knuckle pin关节销,钩销...
knuckle man挂钩工
knuckle pivot转向节
coupler knuckle钩舌, 车钩关节...
knuckle tooth圆顶齿
knuckle joint肘形接头

经典引文

I stuck in my forefinger up to the knuckle.
出自：S. Beckett
He gripped his binoculars so hard that his knuckles showed white.
出自：D. Francis
Her hands showed signs of much age, being knotted at the knuckles.
出自：J. Rathbone
They had knuckled under to Queensbury's threats.
出自：R. Ellmann

【近义词】

protuberance瘤
projection投影
lump块
prominence突出物
bulge膨胀
knob旋钮
nub小肿块
knot结
knuckle joint肘形接头
metacarpophalangeal joint掌指关节

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