英语语法分析

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。

On his head was a mitre of black felt decorated with silver crescents.

头戴黑毡法冠，冠上饰有银的新月。

Left, separated by less than a degree, the two crescents hover above a sea of clouds.

左图中，两个月牙形分隔不到一度，在云海上照射光芒。