As NILFS is log structured, new data is written to the head of the log while old data still exists (until it's necessary to garbage-collect it).
由于NILFS是基于日志结构的，新数据被写到日志的头部，而旧数据仍然保留(直到需要对旧数据进行垃圾收集)。
The app will ask you to log in, but if you don't have an account, you will have to head to a browser to make one.
这个应用会让你登录，但是如果你没有账户，你可以不得不打开浏览器去申请一个。
To see how this works, head on over to the Google Spreadsheets service, log in, and create an empty spreadsheet.
要了解其工作方式，请访问GoogleSpreadsheets服务，登录并创建一个空的电子表格。
You head outside after a snowstorm and see dozens of log - or drum-shaped snowballs.
假如你在一场雪暴后外出或许能见到许多圆木状或鼓形的雪球。
The log backup does not prevent truncation, but the head of the log cannot move until the log backup completes.
在日志备份完成之后，日志头部才能移动。在这种情况下，释放空间可能需要再进行一次日志备份。
I have a dream log on my head board. There's no pen with it.
在我的床头有一本梦记录 ，边上没有笔。
I have a dream log on my head board. There's no pen with it.
在我的床头有一本梦记录 ，边上没有笔。
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