Some past studies may also give us a clue.

过去的一些研究可能也会给我们一些提示。

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Past studies have mostly involved Caucasians, Lin said.

林香菱说，过去的研究主要涉及白种人。

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Past studies have shown that infants babble better in their mother's presence.

先前的研究表明，婴儿当着母亲的面就嘟嘟得起劲。

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That is more than in past rock climbing studies.

VOA: special.2009.12.09

So a good bit of what we know about diet and health now comes from studies like The Nurses' Health Study, and in the past, from studies like The Framingham Study and The Seven Country Study.

我们现在知道的关于饮食与健康的知识,相当大一部分来自于像,护士健康研究这样的调查,而在过去则是来自像弗明汉研究和,七国研究这样的项目

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Past studies have shown that early risers are more likely to be thin than late-to-bed types.

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He and his colleagues suspected, however, that the cues for nodding were far more complicated than the past studies had indicated.

ECONOMIST: Computer etiquette: Nods and winks | The

The control group may be muddying the waters further, because it survived longer than the researchers would have expected based on past studies.

FORBES: Magazine Article