20160308科學課: 地球垃圾清理和資源回收(Introduction to science of garbage cleanup and recycling with DIY ocean cleanup science projects)
We talked about recycling and how to clean up the Earth. Kids made their own ocean cleanup device! 探討了如何保持地球的乾淨，和人類要如何多做回收再利用的一堂課，孩子還自己做了海洋垃圾回收器具!
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