The notion of conservation is that there's ways to transform things such that some aspects of them change but others remain the same.
守恒是指物体某方面的特征,不会因为其他方面特征的改变,而有所改变
However, there are some things that can be changed, but there are things that will remain the same no matter how hard you try.
然而，有些东西可以改变，但也有些事情是无论如何也无法改变的。
Some things are unpredictable, if he does not mind, maybe you can remain friends, but you know it will never be the same as before.
有些事不是你能预料的，或许对方不在意，你们还可以是朋友，但却已经不如从前的好。
Some things are unpredictable, if he does not mind, maybe you can remain friends, but you know it will never be the same as before.
有些事不是你能预料的，或许对方不在意，你们还可以是朋友，但却已经不如从前的好。
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