mountain hypoxia

例句：

1. 1. The mountainous region is hometo many rare species of plants and animals.
   山区拥有许多稀有的植物和动物。
2. 2. Dueto the mountain hypoxia, the airquality in the area is poor.
   由于山地缺氧，该地区的空气质量较差。
3. 3. The mountain hypoxia has led to a decline in thenumber of tourists visiting the area.
   山地缺氧导致游客数量减少。