I just can't undo it.

I just can't undo it.
I just can't undo it.

I just can't undo it.
我只是不能挽回它.

我只是不能取消它了

I just can't undo it
我简直不能解开它.

我不能放弃！

do 做一个动作
undo 取消前一个操作
I just can't undo it. 我就是取消不了

这个要看语境了。undo的意思根据情况不同可以有一大串解释了。上面的那些都可以。

我不得不这么做。

我只是不能挽回它。

我只是不能挽回它。