我只知道昨天已是过去。

All I know is yesterday is gone.

youdao

我不知道哪一种使人更加保守- - -是只知道现在，还是只知道过去。

I do not know which makes a man more conservative — to know nothing but the present, or nothing but the past.

youdao

有很多（大规模）的损害和修补， 我试图解决已经过去的事情， 但只知道有些事情做了就做了， 是不能撤消滴…

There are many (and massive) damages and repairs where I tried to fix things already passed, only to learn that some things done cannot be undone. …

youdao