Involvement in sports, in particular, rose almost 50% from 1981 to 1997: boys now spend an average of four hours a week playing sports; girls log half that time.

特别体育运动参与率从1981年到1997年上升了近50%：男孩们现在平均每周花四个小时做运动；而女生则只花一半的时间。

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It is important that the log buffer be able to hold the amount of log space used by an average transaction.

使日志缓冲区可以容纳一般事务所使用的日志空间总量是很重要的。

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The site then creates a handy log of your fuel consumption as well as graphs of things like average miles per gallon.

该网站然后创建一个你燃料消耗的简便记录，以及一些图表，像是平均英里每加仑。

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CMOs of top technology brands log an average of 60 months, while financial-services CMOs stick around about 54 months.

FORBES: CMO Tenure Reaches 45 Months

Moreover, Brazilians log onto their Orkut account more times per month than the average viewer logs onto Facebook worldwide.

FORBES: Brazil Keeps Google's Orkut Relevant; Tops Facebook

Specifically, JASO is on pace to log a second consecutive weekly close beneath its 50-week moving average.

FORBES: First Solar Looking Fine But Not JASO, SunPower