More than 5 million people in the U.S. have Alzheimer's disease, and this number will quadruple by 2050, according to the Alzheimer's Association.

根据阿尔茨海默病研究中心的报告，在美国有超过5百万人患有老年痴呆症，到2050年这一人数将会翻两番。

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More than 5 million people in the U. S. have Alzheimer's disease, and this number will quadruple by 2050, according to the Alzheimer's Association.

根据阿尔茨海默病研究中心的报告，在美国有超过5百万人患有老年痴呆症，到2050年这一人数将会翻两番。

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Membership in the Florida Association of Realtors is down 29% since 2006, although the number of Realtors could change by year-end.

佛罗里达州地产经纪商协会的会员自2006年以来下降了29%，不过经纪商的数量可能在年底前发生变化。

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As the chairperson of the victims' rights association Families of the Disappeared of Guatemala, Elena has presided over a number of such investigations.

VOA: standard.2009.12.18

I bet there are people in this room who know the lyrics to over 1,000 songs, NBA know the number of every individual in the National Basketball Association, so I think that learning some subset of elements is not unreasonable.

我敢打赌这个房间里有那么些人,他们能记得住超过1000首歌的歌词，记得住,每个人的号码，因此我认为,能记住这些元素也不是不可能的。

麻省理工公开课 - 固态化学导论课程节选

The Mortgage Bankers Association reports the number of subprime adjustable rate mortgages at 2.9 million.

FORBES: Bush's Bad Mortgage Medicine

According to the Arizona Software and Internet Association, the number of Internet jobs in the region is growing 13% a year.

ECONOMIST: Urban boosterism

Carol Boys from the Down's Syndrome Association said the number of abortions would be reduced if parents were better informed about Down's syndrome.

BBC: Steep rise in Down's pregnancies