knuckles

He gripped the wheel until his knuckles whitened.

他紧紧握住方向盘，握得指关节都变白了。

Brenda´s knuckles were white as she gripped the arms of the chair.

布伦达紧紧抓着椅子的两个扶手时指关节白了。

If they broke down in their make-believe he rapped them on the knuckles.

如果他们在假装的时候半途而废了，他就会敲他们的指关节。

I looked at my dad, his knuckles swollen and cracked from farm work and his fingernails tipped with black crescents of motor oil.

我看着我爸爸，他的指关节因农活而肿胀开裂，他的指甲尖被机油染成了一轮黑色的新月。

He felt weak and sore, and the pain of his smashed knuckles warned him that, it would be a week before he could grip a pick handle or a shovel.

他感到虚弱和疼痛，他那被砸碎的指关节发出的疼痛警告他，要过一个星期才能抓得住镐柄或铁锹。