详细先容：通过命名属于统一相似类别的物件，好比动物，玩具或者乐器，将它们的第一个词先容给观众。Viewers are introduced to f…
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简介：通过命名属于统一相似类别的物件，好比动物，玩具或者乐器，将它们的第一个词先容给观众。Viewers are introduced to first words by naming objects that belong to a similar category such as animals， toys， or musical instruments。…