A　Look, it's all water over the dam now. Let's leave it behind us.

看，一切都无法挽回，就别再多想了。

B　Yeah, I know, but it's too hard to do.

对，我知道，但是很难做到。

A　Our eyes should look into the future. We could not live in the past.

我们的目光应该投向未来，不能活在过去。

B　Only sometimes when I think about it, I feel very sad.

只是有时候想起来我就感到难过。

A　It's normal. Time will change everything.

很正常，时间会改变一切的。