科普故事｜过年大扫除的秘密

过年大扫除有啥秘密？小动物们在大象老师的课堂上找到了答案。原来，它不仅让家变得干净，还能迎接好运、辞旧迎新。科学地说，还能消灭细菌，让家里更健康。而且全家一起分工合作，甚至比赛，能让这件事变得更有趣哦！听完这堂课，你是不是也想立刻行动起来呢？02:00 大扫除：从科学角度到文化意义，重要性与新年氛围04:01 家庭趣味大扫除，迎接新年的心情焕然一新！06:03 小动物们听故事津津有味，纷纷表示要回家帮忙大扫除！

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