所以第一段提到是否该遗忘过去。

So the first verse talks about whether the past should be forgotten.

youdao

记住该记住的，遗忘该遗忘的。改动能改动的，承受不能改动的。

Remember what should be remembered, and forget what should be forgotten. Alter what is changeable.

youdao

等待是痛苦的，遗忘也是痛苦的。但不知该等待还是该遗忘是最痛苦的折磨。

Waiting is painful. Forgetting is painful. But not knowing which to do is the worst kind of suffering.

youdao