sympathy (n.)
同情（心）

例句：
These people need our help and sympathy.
这些人需要我们的帮助和同情。

put on the dog
摆架子、妄自尊大

例句：
Because her father has two cars she is always putting on the dog.
因她父亲有两部车，所以她老是摆阔。

It doesn't matter to me.
对我来说无所谓。 

对话：
A: I've decided¹ to buy that villa². What do you think?
B: It's none of my business. It doesn't matter to me.

A：我已经决定买那幢别墅了。你觉得怎么样？
B：这不关我的事。对我来说无所谓。