regretful

adj. /rɪˈɡretfl/ B1

懊悔的；遗憾的

Feeling or showing sadness or sorrow about something.

仙境例句

Later the Rabbit was very regretful about his gloves and fan, for he could not find them anywhere.

后来白兔为他的手套和扇子懊悔不已，因为他哪儿也找不到它们了。