We've already touched on one of these special variables, FS.
前面已经接触过特殊变量FS。
Within the body of a class, you can declare special variables called properties.
在类的主体中，可以声明叫做属性的特殊变量。
There are no special variables of the kind that good Perl programmers use regularly.
不存在优秀的Perl程序设计人员常规使用的那类特殊变量。
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