然而，人们用汉语写作时，使用的是代表文字或思想的字符。

People who write in Chinese, however, use characters that stand for words or ideas.

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将cdata节替换为它们的文字字符内容。

CDATA sections are replaced with their literal character content.

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在重构后，所有对这个类中的数字或字符串文字的使用都将指向该字段，而不是指向数字或字符串文字本身。

After the refactoring, all USES of that number or string literal in the class refer to that field, instead of the number or string literal itself.

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