He lived out his days alone.

　　他獨(dú)自度過余生。

　　Lions sometimes hunt alone.

　　獅子有時單獨(dú)獵食。

　　He dines alone most nights.

　　大多數(shù)晚上他都獨(dú)自進(jìn)餐。

　　I didn't like being alone at home.

　　我不喜歡獨(dú)自在家。