商品是否必须得是有机材料的？
A lot of our everyday waste is organic material such as food scraps.
我们日常的废弃物中，有许多都是诸如剩菜剩饭等的有机物质。
Fungi also play a central role in degrading organic material.
在降解有机材料方面真菌同样有很重要的作用。
The images also will show the amount of organic material in the soil.
同时这些图还会显示土壤里有机物质的量。
The fertilizing effect with organic material is better than with fertilizer.
有机物料的培肥效果优于化肥。
The fertilizing effect with organic material is better than with fertilizer.
有机物料的培肥效果优于化肥。
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