The variable names title and author within the extractor are arbitrary; matches from capture groups are simply assigned from left to right, and you can call them whatever you'd like.
抽取器中的变量名title和author是随意的;从捕捉组来的匹配结果会简单地从左往右被赋值,你可以叫它们任何名字。
This value is named template, but the name is arbitrary, and you can call it anything you like.
此值被称为template,但其名称是随意的,可以是任何想要的名字。
We call the proposed operator "infoof", since it would return arbitrary metadata info.
我们把这个提议的操作符叫做“infoof”,因为它能返回任意元数据的信息。
You've got to realize that in calculus, the symbols that you call x and y are completely arbitrary.
你应该明白在微积分中,选x还是y当符号是完全任意的
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