发送正文文件。
Sending text files and output streams through text utility filters to modify the output.
通过文本实用过滤器发送文本文件和输出流，以修改输出。
It doesn't have a feature for sending small character groups over and over, although this can easily be achieved by creating text files containing the character groups you want to practice.
它没有一个功能发送小团体的性质和，虽然这可以很容易地实现创建文本文件包含的性质团体要实践。
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