Furthermore, you cannot ALTER the global variable definition at all, including its default value.

此外，您不能更改全局变量定义，包括其默认值。

youdao

Once we have rid ourselves of all variable state changes, we can know that when we first define our variable, the definition of our variable will hold for as long as the function lasts.

当我们解决了所有变量状态改变的问题后，就可以确信，当我们第一次定义变量时，变量的定义在函数整个生存期间都会保持。

youdao

This is unlike most languages - the very definition of variable tends to imply that the value is variable.

这与大多数语言不一样—变量的定义通常意味着值是可变的。

youdao

The basic definition-- the expected value of some random variable x--E--I guess I should have said that a random variable is a quantity that takes on value.

最基本的定义,某一个随机变量X的期望值E,我应该提到过,随机变量是一个可以取值的数

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