This biomass material is in a continuing state of decomposition, ultimately becoming that semi-stable material called humus.
这个生物质是在一个连续的分解状态下，最后生成了一种半稳定的物质叫做腐殖质。
This biomass material is in a continuing state of decomposition, ultimately becoming that semi-stable material called humus.
这个生物质是在一个连续的分解状态下，最后生成了一种半稳定的物质叫做腐殖质。
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