高手请进：“世上没有后悔药” 英语怎么说？

直译的话就是：
In the world has not regretted the medicine.

There's no regret in the world.

Ther's no moving back in the world.
(即无法再回到过去，后悔也无法挽回)

意译的话就是：

Don't Cry Over Spilt Milk.

It's no use crying over spilt milk.

What's done cannot be undone.