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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Table data skew refers to a difference between the number of records in a table on particular database partitions and the average number of records across all database partitions for this table.

表数据倾斜指的是特定的一些数据库分区上的某个表内的记录数与这个表所跨的所有数据库分区的平均记录数之间的差额。

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In the case of family moves, Nettle calculated whether the child moved home more times than average for a child in that particular area.

例如搬家一项，内特尔计算某个孩子的搬家次数是否多于该地区孩子的平均搬家次数。

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We're not asking you to change anything; in fact it's best for this particular exercise to eat as you typically would so you can get a sense of what an average day would be like for you.

我们不是要求你去改变什么,事实上,对于这个作业来说,保持以前的饮食习惯是最好的,以便了解自己平时的饮食

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And while Ortiz has been a Yankees nemesis almost since the day he joined the Red Sox in 2003, the surprising Iglesias has quickly become a particular pest to them this season with a .545 average in 22 at-bats.

WSJ: Buchholz, Red Sox beat Yankees 3-0 in 5?? innings

It especially makes investing in ETFs geared to a particular market segment or average less rewarding.

FORBES: The Week Ahead: Should You Be Buying or Selling?

Some types of expenditure are estimated by reference to an average level of spending for a particular household type, using data from the Family Expenditure and Food Survey.

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