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1·The report is underpinned by extensive research.

这份报告以广泛的研究为基础。《牛津词典》

2·Extensive research has been done into this disease.

对这种疾病已进行了广泛研究。《牛津词典》

3·He has carried out extensive research into renewable energy sources.

他已经对再生能源进行了广泛研究。《牛津词典》

4·Extensive research has shown that the effects of short-term price promotions on sales are themselves short-term.

广泛的研究表明，短期价格促销对销售本身的影响是短期的。

5·In laboratories, healthy adult human brain neurons typically live no more than a few hours, making extensive research impossible.

在实验室里，健康的成年人大脑神经元的寿命通常不超过几个小时，因此不可能被广泛的研究。

6·It's been well documented in extensive research over the years that prevalence rates for the majority of the anxiety disorders are higher in women than men.

多年来的广泛研究已经充分证明，大多数焦虑症在女性中的患病率要高于男性。

7·Remember that most decisions don’t require extensive research

记住，大多数决定不需要过多的研究。

8·Dr Campbell has done extensive research on the effects of food and health.

坎贝尔博士对食品和健康进行了广泛的研究。

9·After extensive research, brainstorming, and time in the field, Wokai was born.

经过广泛的研究、头脑风暴和大量的田野调查，“我开”诞生了。

10·Despite extensive research, their effects on humans are still poorly understood.

尽管以进行了大量研究，但它们到底对人类有多少影响还仍旧知之甚少。