1. The heavy rain caused significant slopewash, leading to landslides in the area.
大雨导致了严重的山坡冲积，在该地区引发了山体滑坡。

2. The construction project had to implement measures to prevent slopewash during heavy rainfall.
在大雨期间，该建筑项目必须采取措施防止山坡冲蚀。