For this sprite only, means local, only this function, only this script can use this variable, make this variable for all sprites, meant it was global.

对于只为一种精灵，意思是局部的，只有这个函数中，这个脚本中才可以用这个变量，这个变量为全部精灵而创建，意思是这个变量是全局的。

哈佛公开课 - 计算机科学课程节选

And obviously, that ought to involve the variable in some way, or it's not going to make a lot of sense, so this includes the variable, since that's the thing that's changing.

很明显，这跟计数器的变量有某种关系,否则的话就没多大意义了,因此这跟计数器有关，因为它正是每次循环改变的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's a common mistake to make if you forget that I've actually declared that variable up top, but wait a minute, I know any time that I use a variable, I have to declare it.

这是一个通常犯的错误，如果你忘了,之前在前面已经声明了这个变量，等等，我知道在任何时候,我使用一个变量，我必须声明它。

哈佛公开课 - 计算机科学课程节选

There's something called "variable life," which refers to a life insurance policy where the policyholder can make decisions about the investment of the money in the whole life policy.

有种保单叫做"可变寿险",作为终身寿险的一种,投保人可以自主选择,在终身寿险上进行多少投资

耶鲁公开课 - 金融市场课程节选

Use variable names that make sense.

尽量用有意义的变量名字。

麻省理工公开课 - 计算机科学及编程导论课程节选

When you created a variable in scratch, you could either make it for this sprite only or for all sprites. All right.

当你在scratch中创建一个变量，你可以只为这个精灵创建,或者为全部的精灵而创建，好的。

哈佛公开课 - 计算机科学课程节选