Last year,a group of experts examined studies of aspirin at the request of federal health officials in the United States.

VOA: special.2010.12.14

Looking at this particular group, he estimated survivorship bias to be 4.4% per year and backfill bias to be 7.3% per year.

分析这个特定的样本,他估算其生存偏差每年达到4.4%,回填偏差每年达到7.3%

耶鲁公开课 - 金融市场课程节选

So, you may or may not know this about your TAs, but this is a pretty competitive group of TAs we have this year, and they like to brag about how smart their recitation is, how good questions they're getting in the recitation section.

不知道你们是否知道这与你们的助教有关，但是今年我们的助教们,都非常有才，而且他们都想向别人炫耀一下，自己的讨论课做得有多漂亮，回答的问题有多好。

麻省理工公开课 - 化学原理课程节选

The group says its beaders earn an average of more than two thousand dollars a year in the program.

VOA: special.2010.06.28

That means that a group of people who were identified and then re-measured every other year on -to getting blood tests and other biological markers, as well as doing assessments of their lifestyle behaviors and a number of other things.

就是说有一群特定的人,然后每隔几年,就要接受血液及其他生物学测试,还要对他们的生活方式等进行评估

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In that group, twenty-two percent of the wives earned more than their husbands during the most recent year of the study.

VOA: special.2010.02.19

Sure, for the first time this year, there's an outdoor group studying at the Hillel, the Jewish Center. I think it really was inspired by this outdoor spirituality series, which is wonderful.

好的，今年户外活动项目，第一次在Hillel的犹太中心，进行小组学习,这一系列户外灵性活动真的给了我们很多灵感，这是个非常棒的项目。

普林斯顿公开课 - 人性课程节选

The group says the low cost vaccines could save as many as seven million lives by the year twenty thirty.

VOA: special.2010.03.29

Roger Ibbotson took a look at a larger group of funds -3,500--funds over a ten-year period and found survivorship bias at 2.9% per year and backfill bias at 4.6% per year.

罗杰·伊博森研究了更大的样本组,3500支基金10年间的表现,算出其生存偏差是每年2.9%,回填偏差是每年4.6%

耶鲁公开课 - 金融市场课程节选

Advertising sales dropped sixteen percent last year, and the group expects another ten percent drop this year.

VOA: special.2009.04.20

Last week's meeting in Pittsburgh,Pennsylvania, was the third Group of 20 summit in less than a year.

VOA: special.2009.10.02

And each year in January, a group of people gather at Joshua Norton's grave to remember him.

VOA: special.2009.12.14

Sixteen-year-old violinist Nicholas Black joined after he read a story about the group in a local newspaper.

VOA: special.2010.06.21

A young man named Matthew Martz started the group in his last year of high school.

VOA: special.2010.06.21

Leaders of the Group of Twenty have now met three times in less than a year to deal with the worst recession since the nineteen thirties.

VOA: special.2009.09.26

The group persuaded George Washington University to provide money for a 4-year scholarship.

VOA: special.2009.01.28

Sixteen-year-old Jarrah was with a group of Chinese students visiting the United States.

VOA: special.2010.02.08

The group says at least ten thousand students take part each year.

VOA: special.2009.11.12

In July of that year, Darwin's friends Charles Lyell and Joseph Hooker had studies by both men presented to the scientific group called the Linnean Society of London.

VOA: special.2009.12.01

Last year,the group received income of more than one billion dollars.

VOA: special.2010.06.09

This eight-year-old nonprofit group is supported by foundations, companies and individuals.

VOA: special.2009.11.02

But eighteen-year-old Julia Holmblad joined the group for a different reason.

VOA: special.2011.04.01

More than 2,000 times last year, counterfeit medicines caused illness and death, according to the Pharmaceutical Security Institute,a watchdog group.

VOA: standard.2010.06.07

In 2008 the group launched a five-year global tour of a specially-designed sailboat with the date "2041" emblazoned on its side.

VOA: standard.2009.12.10

Uganda was given permission by Congolese authorities to carry out attacks against the rebel group late last year.

VOA: standard.2009.08.27

The group was inducted into the Rock and Roll Hall of Fame in 1994, and,earlier this year, The Wailers' album,"Catch A Fire,"

VOA: standard.2010.07.22

The group says requests by governments for domain names should be approved and come online next year.

VOA: standard.2009.11.16

His group also claimed responsibility for an attack on a Shi'ite mosque in Iran earlier this year that killed about two dozen people.

VOA: standard.2009.10.19

The top-three teams in the six-nation group advance to next year's World Cup finals in South Africa.

VOA: standard.2009.06.07

Wesonga says his group suspected that money was being misappropriated more than a year ago.

VOA: standard.2010.03.04