你也不能让它变得更好，因为化学物质一旦发生变化，是不可逆的。

You can't make it better, either, because once chemicals change, they can't be changed back again.

youdao

你也许会想到世界变得更坏了，而我想到的是它变得更好了。

(You may perhaps think for the worse - I think for the better).

youdao

我们生活在一个并不完美的世界，然而我们还是期望它变得更好。

We live in an imperfect world, yet our expectations continually increase.

youdao

Or my life would've gone better for this period of ten years, but then it would've become worse.

或者说我的生活在这十年本来可以更好，然后它会变得糟糕。

耶鲁公开课 - 死亡课程节选

The laws can't do anything about making people better or worse, it takes them as they are and then it deals with them accordingly.

现今的法律做不到让人,变得更好或更坏,它让人们维持原样,并且循规蹈矩的处理事情

耶鲁公开课 - 古希腊历史简介课程节选