lonely

I will send you Xmas cards because I know you are lonely.

别人说你这个人很lonely,有点不怎么好，就说明你没有朋友，很孤独可怜。直接当面这样说有点不太礼貌哦。可以调侃时说。

1. lonely equals sad because you are on your own.

2. lonely equals solitary. They are almost the same.

3. sometimes you can also say this is a lonely road which means this road is not often visited or used.

alone

Max often stays at home alone because he has no siblings.

alone 表示单独一个人
means without any other people or things

[ 本帖最后由 不二周助 于 2008-8-28 19:28 编辑 ].

表达一个人独处用alone，

lone, lonely, solitary 基本上差不多可以通用。.