It's not too late to try and undo some of the damage.
想办法补救部分损失还为时不晚。
《牛津词典》
2
It may turn out that vitamin E plays a role in prevention but cannot undo serious damage.
结果可能是，维生素E在预防中会起作用，但不能消除严重的损害。
3
That suggests that catch-up sleep may undo some but not all of the damage that sleep deprivation causes, which is encouraging, given how many adults don't get the hours they need each night.