knuckling是什么意思？

knuckling

英['nʌklɪŋ] 美['nʌklɪŋ]

• n. 突球；
• v. （指人）指关节( knuckle的现在分词 )，（指动物）膝关节，踝；

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  指节；指关节
  Your knuckles are the rounded pieces of bone that form lumps on your hands where your fingers join your hands, and where your fingers bend.
  例句
  Brenda's knuckles were white as she gripped the arms of the chair. 布伦达握紧椅子扶手时指关节都变白了。

行业词典

• 医学： 突球：马球节由于其后肌腱缩短而被推向上向前；