... We all mourn the destruction of a well-loved building. 我们都为毁掉心爱的建筑物而痛惜。 It immediately below the A-horizon; contains deposits of organic matter leached from surface soils. 它就在表层下面，由通过土壤表层过滤得到的有机物组成。 This destruction of organics can be verified by means of the background corrector . 有机物的这种有害作用可以通过背景校正器而得以检验。 ...
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