地球上的人口越来越多,垃圾也随之增多,环境污染变得越来越严重。所以我要发明一种万能垃圾处理器,将这些垃圾回收利用,从而提高空气质量。万能垃圾处理器的外观像一辆绿色的小轿车。它用轻薄材料制成,体积小,重量轻,因此可以在许多地方使用,特别是沟渠和下水道等狭小的地方。它的底部装着四个轮 More and more people on Earth, garbage will also increase, environmental pollution has become more and more serious. So I’m going to invent a universal waste disposer that recycles these rubbish to improve air quality. The rubbish processor looks like a green car. Made from lightweight materials, it is small and lightweight, so it can be used in many places, especially in narrow areas such as ditches and drains. It is equipped with four wheels at the bottom