The four-week average of claims, a less-volatile measure, dropped for the fifth straight week to 458,000, the lowest level in two months.

该项数据今年一直在45万左右波动。 四周平均申领人数为45.8万，连续五周下跌，达到近两个月的最低水平。

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The four-week average of initial unemployment claims is also down from a month ago, although well above the levels seen in May and June of last year.

首次申请失业补贴的4周平均人数也比上个月有所下降，尽管仍然高于去年5、6月份的同期水平。

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Doctors work an average of 90 hours a week, while a few are on call for up to 120 hours.

医生们平均每周工作90个小时，而有些出诊长达120个小时。

《柯林斯英汉双解大词典》

Mister Rehm says the average person around the world has about twelve alcoholic drinks a week.

VOA: special.2009.09.08

Americans spend the most time out of any other people in the world volunteering in average four hours a week, volunteering outside their job which may also have a social objective more than any other people in the world.

比其他任何人所花的时间都多,平均每周有四个小时做志愿者的工作，做与自身工作无关的善事,他们比世界上其他人更具社会目标。

哈佛公开课 - 幸福课课程节选

More than 150,000 people have left their homes in Burkina Faso, many in the capital Ouagadougou, where the United Nations says the amount of rain that fell in one day last week equals one-quarter of the nation's average annual rainfall.

VOA: standard.2009.09.06

The four-week average, a less volatile measure, plummeted 16, 000 to 342, 250, close to a five-year low.

NPR: US Jobless Claims Fall To 5-Year Low Of 324K

Riverbed has been finding price support at its 10-week average, along with some heavy-volume buying lately.

FORBES: Connect

Interestingly, the four-week average dropped to 349, 000, its lowest level since the last recession.

FORBES: Jobs Report Could Disappoint As Rising Layoffs And Retail Sales Weakness Hit A Slow Economy