By 2016, the average American high school senior said they spent six hours a day writing text messages, on social media, and online during their free time.
截至2016年，美国高中高年级学生说他们在空闲时间里平均每天要花6个小时的时间写短信、上社交媒体以及上网。
XPP suffers from requiring more steps for parsing and writing text documents, and for working with namespaces.
XPP在语法分析和编写文本文档时需要更多步骤，并且在处理名称空间时也需要更多步骤。
These include convenience methods for reading and writing text-based files, significantly faster directory enumeration, and support for memory mapped files.
包括读写文本文件的便捷方法，快速地列举目录，对内存映射文件的支持。
These include convenience methods for reading and writing text-based files, significantly faster directory enumeration, and support for memory mapped files.
包括读写文本文件的便捷方法，快速地列举目录，对内存映射文件的支持。
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