简介：通过命名属于同一相似类别的物件，比如动物、玩具或者乐器，将它们的第一个词介绍给观众。Viewers are introduced to first words by naming objects that belong to a similar category such as animals, toys, or musical instruments.
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视频介绍
简介：通过命名属于同一相似类别的物件，比如动物、玩具或者乐器，将它们的第一个词介绍给观众。Viewers are introduced to first words by naming objects that belong to a similar category such as animals, toys, or musical instruments.
