它们是灰色的

pearl grey───珠光灰；珠光灰的

the bare bones───赤裸裸的骨头

pearl greys───珠光灰；珠光灰的

pearl-grey───珠光灰；珠光灰的

the archenemy───恶魔

the artillery───炮兵

turn grey───变成灰色

Although they are pretending hard to be young, grey hair and cellulite give them away.───尽管他们尽力装出年轻的样子，但是灰白的头发和皮下脂肪团却暴露了他们的真实年龄。

Oh, now they are getting grey.───哦，现在它们变灰了。

They are grey.───它们是灰色的。

What color are those rabbits? They are grey.───那些兔子是什么颜色的？它们是灰色的。