Knuckles
n. （指人）指关节( knuckle的名词复数 ); （指动物）膝关节, 踝\\nv. （指人）指关节( knuckle的第三人称单数 ); （指动物）膝关节, 踝
🗣️ 情景例句
... I mean that when I say I care,
……我的意思是当我说 我关心 时
She is very fed up about it.
她对此非常不满。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。