call off an engagement

• 取消婚约

call off an engagement的用法和样例：

例句

1. She broke his heart when she called off the engagement.
   她的取消婚约使他为之心碎。
2. I was already heartbroken when my boyfriend broke off our engagement,but to add insult to injury,I wanted to die when I found out that he is marrying my best friend instead.
   未婚夫和我取消婚约，已经伤透了我的心，更惨的是发现原来第三者是我的最好朋友。