After conducting extensive market research, they concluded that teenage girls on every continent have the same concerns and questions about puberty.
经过广泛的调查他们发现，全球各地的未成年少女有着相同的青春期烦恼和问题。
Scholars from home and abroad have been conducting extensive and detailed research in Naxi Society and its history since the 20th century.
20世纪以来，中外学者对纳西族的社会历史进行了广泛的研究。
Scholars from home and abroad have been conducting extensive and detailed research in Naxi Society and its history since the 20th century.
20世纪以来，中外学者对纳西族的社会历史进行了广泛的研究。
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