这是芭比公司在经过广泛研究后选择了上海，而不是世界上任何其他城市的一个重要原因。

That's one important reason why Barbie chose Shanghai, after extensive research, over any other world city.

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这两个技巧都经过了广泛的研究。

Both techniques have been researched extensively.

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经过广泛的研究、头脑风暴和大量的田野调查，“我开”诞生了。

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

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