Hand by a hair的意思|示意

The little of his face that was not obscured by hair or beard was soaking and swollen; he was shaking with tears, a vast, spotted handkerchief in his hand.

他脸上没有胡子和头发的那一小块地方被泪水浸透了，而且肿了起来，他哭得身子发抖，手中攥着一块斑斑点点的大手帕。

She put her hand, which was a comfortable hand though roughened by work, upon my hands, one after another, and gently took them out of my hair.

她把手放在我的手上，虽然她的手由于日夜操劳而变得粗糙，可又是多么温柔舒适啊。