保留字符内容中的所有空白(不包括换行规范化过程中删除的字符)。
All whitespace in character content is retained (excluding characters removed during line feed normalization).
在处理数据时，一个规范化字符串将告诉XML处理器删除字符串两边的不必要空格。
A normalized string simply tells the XML processor to remove any unnecessary extra white space surrounding the string when processing the data.
注意，当打印passage字符串时，所有格式将被删除，只保留一个非常长的字符串。
Notice that when I printed the passage string, however, all the formatting was removed, making for one very long string.
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