英語翻譯：

alone; by oneself; only; single

例句：

1. 她反復地給孩子們說，他們不可以獨自橫過馬路。
   She drummed it into the children that they must not cross the road alone.
2. 他晚年獨居，從不歡迎來訪者。
   In the latter years of his life he lived alone and never welcomed visitors.
3. 她單獨去是很危險的。
   It's unsafe for her to go alone.
4. 一個面色憂郁的年輕女人獨自坐在長凳上。
   A young woman, of sullen aspect, was sitting alone on the bench.
5. 我獨自在教室里。
   I was alone in the classroom.
6. 我想不通你怎么會讓孩子獨自去旅行。
   I can't conceive of your allowing the child to travel alone.