Saprodil
腐殖質煤, 第三系中的腐泥層
??? 情景例句
Everything turned out well.
一切順利。
Do as the Romans do.
入境要問俗。
They may also have used wood and skins, but these have rotted away.
他們也可能用過木頭和獸皮，但這類東西早已腐爛殆盡。