When your pen is broken, the battery (电池) your toy runs out, or you have some leftover (剩下的) food, what do you do with these things? You will probably throw them all into one bin. However, in fact, all of these pieces of rubbish need to be sorted separate...
The waste, for the purposes of waste sorting, can be divided into two groups: organic and inorganic. Organic waste includes animal waste, plants, discarded food, and garden accoutrements. Inorganic waste includes man-made products such as plastic, metal, and glass. Therefore, this study ...