for heavy rain would not only wash away the soil but would cause serious floods as well
问题描述：
for heavy rain would not only wash away the soil but would cause serious floods as well
这句话中两个would 是什么用法
答
因为大雨不仅会冲走土壤,而且也会导致严重的洪水.这两个would都是will的过去式,表示过去将来.