break one's heart  让人失望，让人痛心

　　You broke my heart again. 你再一次伤害了我的感情。

　　I broke up with a girl who broke my heart. 我和伤我心的女朋友分手了。

　　Don't break my heart. Please get out of here. 不要伤我的心。请离开这里。

　　Why did your girlfriend leave you? 你女朋友为什么要离开你？

　　She didn't love me. It broke my heart.  她根本就不爱我。这让我非常伤心。