But with the price of gold at an all time high, things are changing.

VOA: standard.2009.10.17

And for time's sake, I'm not going to bother changing the name all of the time, at least for now.

由于时间的原因，我不会总是,去改变这个文件名字，至少现在不会。

哈佛公开课 - 计算机科学课程节选

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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