The participants were divided into five groups according to the amount of sugar and sugar-based sweeteners they consumed daily.

VOA: standard.2010.04.25

Here is an example that shows some very, very metallic elements, groups one and two, and some non-metallic elements over here, five, six and seven.

举个例子,这个例子表明金属元素，第一族和第二族，与一些非金属元素,在这里，第五族，第六族，和第七族。

麻省理工公开课 - 固态化学导论课程节选

I said because I knew I didn't want to have five kindergarten groups all in here.

因为我不想,5组幼儿园小朋友,都同时参加。

麻省理工公开课 - 媒体、教育、市场课程节选

But five major groups in the food industry say they are concerned that the new maize could enter the food supply.

VOA: special.2011.03.08

Usually,they were moved in groups of twenty-five hundred to five thousand animals.

VOA: special.2010.03.18

Some mice were put in standard laboratory cages, in groups of five or so, with plenty of food and water.

VOA: standard.2010.07.14

Civil rights groups say more than five million people are denied the right to vote in the United States because of past felony convictions.

VOA: standard.2010.03.25

But experts say they are encouraged that the virus seems to be hitting hardest among people of middle age, sparing the more vulnerable groups - the elderly and children under the age of five.

VOA: standard.2009.04.28