That - irreversible changes happen all the time too but here I'm talking about very subtle small changes where you're changing the structure of the protein but only a little bit such that it can go back.

这种不可逆的改变时时刻刻都在发生,但我在这里想讲的是,对蛋白质结构进行微小的改变,小到这种改变是可逆的

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I do think that he's trying to make good changes, but it's not going to be easy.

我认为他的确在努力要做一些改变，但这并不容易。

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but I think my thoughts on it are evolving.

但我觉得，我对它的看法在逐渐改变。

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