”过去的就让它过去吧，谁对谁错不重要．记得，我们永远是朋友．”大家帮忙用日文翻一下．

过去の事が过ぎたままで、谁の间违いは重要ではない。
铭记しよう、俺たちは永远の友だ。

过去的就让它过去吧，谁对谁错不重要．记得，我们永远是朋友．
Let bygone be bygone, who to who wrong of no account.remember, we are friends forever.

What's gone is gone. Who's wrong and who's right..it doesn't matter anymore. JUst remember, that we are friends forever.

1楼的翻译很有味道。