她孤零零只身一人。

She was really quite alone in the world.

天又黑了，我只身一人在沼泽地上。

It was getting dark again, and I was alone on the moor.

房子是他找的，一套风吹雨淋的木板平房，每月八十块钱。但即将办妥的最后一刻，公司调他去了华盛顿，于是我只身一人前往郊区居住。

He found thehouse, a weather-beaten cardboard bungalow at eighty a month, but at the lastminute the firm ordered him to Washington, and I went out to the country alone.