We regret that we cannot repeat this article.很抱歉，我们无法再次供应此物。

You may also regret that you only have two eyes.也许你还会后悔只有一双眼睛…We regret that we cannot supply them immediately.非常遗憾，我们不能立即提供这批货物。I bitterly regret that we haven't been able to do better.我们没能做得更好一些，我深感遗憾。I only regret that I have but one life to lose for my country.我唯一遗憾的是：我仅有一次生命能够奉献给我的祖国。就是最普通的从句.