The centenarians in the Boston group's study were all Caucasian, meaning the results should be replicated with participants of other ethnicities, Perls said.

波尔斯说：波士顿研究小组中的百岁人都是高加索白人，意味着研究结果可以复制到其他种族的参与者中去。

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You have simply to walk the paths of any reputable American university today to see that the student population looks like the range of American ethnicities—far more than many other institutions.

如今，当你走在任何一座有名的美国大学校园里的小路上，你会发现美国社会中的各个族裔都能在这些学生中找到——这种多元化程度比很多其他机构都要高得多。

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Robinson is among 157 death row inmates -- 83 blacks, 63 whites and 12 other ethnicities -- who filed appeals under the Racial Justice Act, according to records from the North Carolina Department of Public Safety.

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"The reality is that African-American males are still disproportionately channelled into the criminal justice system and they are still not achieving, or able to have the same educational success as their peers of other races and other ethnicities, " she says.

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This type of cancer affects Caucasian males more often than males of other races and ethnicities and is least common in Africa and Asia.

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