This is especially effective when applied to a text file where there are lots of repeated words and punctuation that can be de-duplicated to save space.

这种方法在应用到可以减少大量重复文字和标点符号来节省空间的文本文件中时尤为有效。

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That gives you the punctuation followed by a space in one step.

这使你能够一步就完成打标点，并且跟一个空格的操作。

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The alternate attribute controls the handling of variable characters in the UCA: white space, punctuation marks, and symbols.

替代属性控制对uca中的可变字符的处理：空白、标点和符号。

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