悔恨的

例句：

1. 1. I regret not having taken the opportunity to meet you earlier.
   我后悔没有早点遇见你。
2. 2. She regrets her decision to leave the company.
   她后悔离开公司的决定。
3. 3. Regret is a natural part of life, but we can learn from our mistakes and move forward.
   遗憾是生活的自然部分，但我们可以从错误中学习并向前看。