regretfully

例句：

1. 1.She regretfully admitted her mistake.
   她遗憾地承认了自己的错误。
2. 2. I regretfully gave up my old job.
   我遗憾地放弃了我的旧工作。
3. 3. He regretfully accepted the offer.
   他遗憾地接受了这个提议。