" I'm sorry! Do I have to wear sackcloth and ashes" ?

" 我很抱歉！我需要悔改吗" ？

You promise to wear sackcloth and ashes for the rest of the month.

你答应在这个月剩下的日子里" 穿麻衣，抹灰烬" 。

For example, if you are feeling really bad about something you did, you might say you are wearing sackcloth and ashes.

例如，如果你对你做的事情感觉很糟糕，你可能会说" you are wearing sackcloth and ashes" （你很懊悔）。