户外活动已经成了每个家庭都会参与的重要活动。这系列的故事还是以我们的垂耳兔作为主角，用童真童趣的语言，讲述一些户外活动的注意事项，为小朋友提供科学准确的快乐安全知识保障。
户外活动已经成了每个家庭都会参与的重要活动。这系列的故事还是以我们的垂耳兔作为主角，用童真童趣的语言，讲述一些户外活动的注意事项，为小朋友提供科学准确的快乐安全知识保障。
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