Some language development experts have characterized child-directed speech in stages.
一些语言发展专家已经将儿童导向的语言划分为不同的阶段。
And that is simply because child development experts like to use fancy names for simple things.
如果是,那仅仅是因为儿童成长专家们喜欢将简单的事情也冠以专业术语。
Most experts agree that the traditional music and dance of American slaves played a big part in the development of ragtime.
VOA: special.2010.01.24
Experts at the Organization for Economic Cooperation and Development estimated that the action cost Egypt's economy at least ninety million dollars.
VOA: special.2011.02.07
Experts welcomed the announcement as a major development toward the understanding, identification and treatment of disease.
VOA: special.2010.07.20
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