Do they even take the very waste matter that we have from food and fiber and so forth, and turn it back into soil and sequester carbon -- in the process of using our cities?
甚至他们是否运用了废弃物 包括食物、纤维等等物质 让它们回归土壤 并进行固碳 即在我们使用城市的过程中 把碳从空气中剥离