translation.en: We realized that when plastics get to the dump, it's difficult to sort them because they have similar densities, and when they're mixed with organic matter and construction debris, it's truly impossible to pick them out and environmentally eliminate them.
translation.zh: 我们意识到，当塑料垃圾聚集到垃圾场的时候， 是很难将它们分类的，因为他们的密度很接近， 而且，当这些塑料跟有机物 以及建筑碎片混合的时候，几乎不可能 将它们筛选出来并环保地处理掉。