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。
They were two of a kind, from the same sort of background.
他们两个是一类人，来自相同的背景。
At the same time, we can learn about the cultural background, which is good for us to learn English.
与此同时，我们可以通过看电影来了解一些文化背景，这对于我们学习英语来说是很有益处的。
Background National guidelines recommend the same approach for treating hypertensive men and women.
国家指导原则建议用同样的方法为治疗高血压男性和女性。
Same as its own cultural background, it has become older and faced the choice.
它同自身的文化背景一样，面临着老化和抉择。
But there are still many differences on the same macroscopic background.
然而，在宏观相同的背景下，也存在着许多不同之处。
People with different living background are under the same cultural impact.
不同生活背景的人受到了同样的文化冲击。
We share the same social background.
我们有相同的社会背景。
Senior middle school or same level, with Engineering or Mechanic and background.
高中及以上学历，工程或机械类相关专业。
'Let me provide you with some background information, to make sure that we're all on the same page…'
就让我与你们说一下背景情况，这样我们也可以都就这情况有个基本了解…
'Let me provide you with some background information, to make sure that we're all on the same page…'
就让我与你们说一下背景情况，这样我们也可以都就这情况有个基本了解…
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