A：I'm sorry, but I can't come to your party.
很抱歉我不能参加你的派对。
B：What a shame!
真可惜!
注释：
shame n.可惜;耻辱
本单词有下列重要用法：
a.What a shame!
= What a pity!
(真可惜!)
b.It's a shame that he can't come.
= It's a pity that he can't come.
= It's too bad that he can't come.
(真可惜他不能来。)
c.Shame on you!
(羞脸/你真丢脸!)