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) By Jenny , 14 March 2016 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! Read more