1. The house was built on a founderous soil, and it collapsed during the earthquake.
这座房子是建在一片容易塌陷的土地上的，地震发生时倒塌了。
2. The road in that area is prone to flooding due to its founderous nature.
由于那个地区土壤不稳定，那条路容易被洪水淹没。