英语翻译：
alone; by oneself; only; single
例句：
- 她反复地给孩子们说，他们不可以独自横过马路。
She drummed it into the children that they must not cross the road alone.
- 他晚年独居，从不欢迎来访者。
In the latter years of his life he lived alone and never welcomed visitors.
- 她单独去是很危险的。
It's unsafe for her to go alone.
- 一个面色忧郁的年轻女人独自坐在长凳上。
A young woman, of sullen aspect, was sitting alone on the bench.
- 我独自在教室里。
I was alone in the classroom.
- 我想不通你怎么会让孩子独自去旅行。
I can't conceive of your allowing the child to travel alone.