knuckles
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;
例句:
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Discard the ham knuckles, chicken wings and herbs.
来自BBC
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Britain gave them a diplomatic rap over the knuckles.
英国对他们进行了外交上的谴责。
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Hattie frowned and pressed her knuckles to her forehead.
来自NEWYORKER
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Her knuckles whiten as she clenches her hands harder.
她的手握得越来越紧，指节都变白了。
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I joined the workers on strike and was rapped over the knuckles.
我参加了工人的罢工，因而受到了训斥。
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Crack the claws and knuckles and remove the meat.
来自BBC