immature residual soil

例句：

1. 1.The study found that the immature residual soil was a significant factor in the decline of the ecosystem.
   研究发现，未成熟的残存土壤是生态系统衰退的一个重要因素。
2. 2.The researchers analyzed the soil samples and determined that the immature residual soil was causing the problem.
   研究人员分析了土壤样本并确定未成熟的残存土壤是造成问题的原因。
3. 3.To address the issue, they proposed to rehabilitate the immature residual soil through organic farming practices.
   为了解决这个问题，他们提议通过有机农业实践来恢复未成熟的残存土壤。