形容词
1. She watches TV when she is alone.
独自一人时，她便看电视。
2. alone的意思
2. He was alone in the house.
他独自一人在家里。
3.
3. The rent alone is $300.
单房租就三百元。
副词
1. For years Mary lived alone in New York.
玛丽孤身一人在纽约生活了好几年。
2. He went home alone.
他独自一人回家去了。
3. I can do it alone.
我可以独自办理此事。