The idea of the mutability, the fact that she was all things to all people.

她千变万化的形象，仿佛是众人心中各种期待的化。

Because RefCell, for example, lets you do interior mutability, which is just, it's not super important what it is.

说， RefCell 允许你进行内部可变操作，虽然具体是什么并不那么重要。

Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability (inconstancy).

因此，正期理论解释了大陆的流动一样，热点可能解释了它们的多变（不稳定）。

Explain the conservatism of Icelandic more like Facebook and the mutability of English more like Twitter, Emoji or does they may look?

解释冰岛语的更像脸书，而英语的可变更像推特或表情符号，它们可能看起来是怎样的？

And the second thing that I think Russ does really like is such a good thing is that mutability of something is you have to specify it.

我认为Russ非常欣赏的第二点，也是非常好的一点是，对于某物的可变，你必须明确指定。因此，你不能只是创建一个变量然后随意改变它。