It has also helped us introduce some U. S. history and civics in an age appropriate manner.

而且，这本书还用每个年龄段的孩子能接受的方式来介绍美国的历史和公民教育。

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It has also helped us introduce some U. S. history and civics in an age appropriate manner.

而且，这本书还用每个年龄段的孩子能接受的方式来介绍美国的历史和公民教育。

youdao