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VR垃圾分类益智

VR垃圾分类益智

 on 12/30/2019
垃圾分类（英文名为Garbage classification），一般是指按一定规定或标准将垃圾分类储存、分类投放和分类搬运，从而转变成公共资源的一系列活动的总称。分类的目的是提高垃圾的资源价值和经济价值，力争物尽其用。 [1] [...]
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