为了一个不爱自己的人痛苦是很悲哀的.(用英语翻译)

4 楼 It is sad to suffering from the person who doesn't love oneself.
It is sad to 后面接suffer原型。suffer 后面应该接for .这句子明显是在说不爱你的人，所以正确的说法应该是

It is sad(pathetic) to suffer for someone whos don't love you.

It is sad to suffering from the person who doesn't love oneself.

It is tragic to be in blue for someone who does not love me.

To feel painful for a person who doesn't like him is sorrowful.

It's a pity to feel sorrow for someone who doesn't love youself.

It's pity that giving your love to the one who doesn't love you.