I am lonely and I am hurting.
我很孤獨，也很痛苦。
She lives alone and often feels lonely.
她孑然一身，常感到寂寞。
He trudged home feeling lonely and let down.
他步履艱難地往家走，感到孤獨而沮喪。
He dines alone most nights.
大多數(shù)晚上他都獨自進餐。
I didn't like being alone at home.
我不喜歡獨自在家。
He felt unsafe and alone.
他感到又危險又孤單。