A man with grey hair was (s)miling at him.

一个头发花白的男人正朝他微笑。

He was a tall, thin man with grey hair.

他是个瘦高个，头发灰白。

He was rather elderly with grey hair and clear blue eyes.

他上了年纪，有着灰白的头发和明亮的蓝眼睛。

He was rather elderly (old) with grey hair and clear blue eyes.

他上了年纪，有着灰白的头发和明亮的蓝眼睛。

He thought, as Tihon slipped his nightshirt over his dried-up old body and his chest covered with grey hair.

当吉洪给他这个干瘦的胸前长满斑白汗毛的老头身上披起一件睡衣的时候，他心中想道。