当然，读取每个数据库文件后在内存中合并词典需要额外的处理，但这也比读取所有文件的消耗小得多。
Of course, a little extra processing would be needed to combine dictionaries in memory after reading each database file, but that should still be cheaper than reading all of the files.
看到使用的文本文件时您可能怀疑，默认的文本驱动程序不是一个功能完善的词典提供程序。
As you might surmise when you see the text file it USES, the default text driver is not a full-featured dictionary provider.
扩展了同义词文件之后，需要从中构建一个二进制词典。
Once the synonym file is extended, a binary dictionary needs to be built from it.
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