They were matched with a "control", teenagers of the same background who were otherwise healthy.

研究人员把这些患者与另一个相同年龄层的健康“控制组”做比较。

youdao

A gas with the same background as a typical sample gas composition should be used for this procedure.

这一路气与样品气具有同样的背景，使用同样的程序。

youdao

Take, for example, Petey Bellows, my roommate at the university. Same age, same background, but dumb as an ox.

就拿在明尼苏达大学跟我同住一个房间的皮蒂·伯奇来说吧，他跟我年龄相仿经历一样，可他笨得像头驴。

youdao

We come from the same background, we have lived many of the same struggles and we have faced many of the same challenges that you have faced.

VOA: standard.2010.06.05

But then you realize that these people came from pretty much the same background that you came from,

当你意识到这些人其实跟你背景相似的时候，

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If I present the same thing in another context or background or environment, then you react very differently.

如果我用另一种表述方式来叙述同样的事件,或者更换背景及环境，你的反应会完全不同。

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"I didn't come out of the same background as the rest of the security community, " he says.

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The nineties new wave has come into its inheritance from the same background.

ECONOMIST: Yet another British film renaissance

We would include the same background check as part of the certification process.

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