Her face was filled with regret.

她的脸上写满了懊悔。

Better to sell with regret than to keep with regret.

后悔卖掉总比后悔没卖掉的好。

Unfortunately ad. with regret or sad feelings

不幸地；遗憾地

This is pansophy greatly wise sighing with regret.

这是大智大哲的慨叹。

This is the end of me, the lion thought with regret.

这只狮子心想：「完了！

I'm an old man. filled with regret. waiting to die alone.

现在我年华已老去，心中充满遗憾，孤单旳迈向黄泉路。

He told me with regret that he could not come to the party.

他很抱歉地对我说他不能来参加这个聚会了.

I learn with regret of the failure of messrs. P. R . & amp co.

听说P. R. 公司破产,甚为遗憾.

Or become an old man, filled with regret, waiting to die alone!

难道等你老了，再后悔莫及，一人孤老而终吗？

Aren't you so miserable and alone and sad and filled with regret?

你难道不太可悲、太孤独、太伤心、心中又充满遗憾吗？