orographic rainfall

例句：

1. 1. The mountainous region experiences a lot of orographic rainfall.
   山区经历大量的地形雨。
2. 2. This area is prone to orographic rainfall, which can cause flooding during heavy rains.
   这个地区易受地形雨影响，大雨时容易发生洪水。
3. 3.The orographic rainfall in the high mountains provides ample water for agriculture and forestry.
   高山的地形雨为农业和林业提供了充足的水资源。