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You must give yourself some buffer time to cover unexpected events - like a sudden traffic jam.

你必须给自己一些缓冲时间以防预料之外的事件——比如意外的交通堵塞。

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The average value for each key dwell time for the entire buffer is computed and returned.

将计算并返回整个缓冲中的每个按键停顿时间的平均值。

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Sexton tagged on the tricky conversion for a 10-point buffer at half-time, and it was his half-break that ignited Leinster's attack again for their bonus point try.

BBC: Leinster 43-20 Saracens

This makes it very easy to reference the current time of the program, the name of the show, how big your buffer is and how much time is left -- perfect for those late nights when you want to check the time and determine if it is too late to finish what you've started.

ENGADGET: DirecTV Genie whole-home DVR review HD