"drained soil"要根据你的上下文来理解，是关于土壤排水条件的描述，由于前面有“wet”，这里可以理解为排水情况好、土壤透气性好的土壤，drained soil不能直接理解为干燥土壤。 通常有 well-drained soi l和 poorly drained soil之分，前者是指排水条件良好的土壤，后者是指经常遭受水淹、排水不畅的土壤。看下面的英文解释能更好地理解什么是drained soil.poorly drained soil： A condition in which water is removed form the soil so slowly that the soil is saturated periodically during the growing season or remains wet for long periods greater than 7 days. 希望有更多人关心我们脚下的土壤。
