plateau mire

例句：

1. 1. The plateau is a unique ecosystem that supports rare bird species.
   这个高原生态系统支持着稀有的鸟类物种。
2. 2. The mire was so deep that it was difficult to see the bottom.
   泥沼太深了，难以看到底部。
3. 3. The hikers were forced to turn back after crossing the plateau and mire.
   登山者在穿越高原和泥沼后被迫返回。