单词：humus soil
humus soil的用法和样例：
例句
- When the humus has been formed, plants can grow well in it.一旦腐殖土形成，植物就可以在里面茂盛地生长了。
- It takes hundreds of years to make humus,and so we ought to save every bit of it.腐殖土的形成需要几百年的时间，所以应当避免任何损失。
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Soil、earth、ground和land都可以表示地面，但这四个词的用法有很大的区别。一起来看看吧! soil意为：泥土、土壤，尤指生长植物的土地。或国家、国土。 The trees have rooted in the rich soil. 树木在肥
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