您还可以让您的日志级别更细粒度一些，仅在某些功能中通过指定想要记录的类别来增加详细程度。
You can also be more granular with your log levels, increasing verbosity only in certain features by specifying which class you want to log. These classes are
最常用的日志文件系统ext3fs （thirdextendedfilesystem）是ext2 的扩展，它增加了记录日志的功能。
The most commonly used journaling file system, ext3fs (or third extended file system) is an extension of ext2 with journaling capabilities.
最常用的日志文件系统ext3fs （thirdextendedfilesystem）是ext2 的扩展，它增加了记录日志的功能。
The most commonly used journaling file system, ext3fs (or third extended file system) is an extension of ext2 with journaling capabilities.
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