regional eco environment的用法和樣例：
例句
- The change of vegetation coverage indicates the changes of global and regional entironment.
植被覆蓋及其變化是全球和區域生態環境變化的重要指示。 - In north-west arid areas in China, regional eco-environment and economic construction are controlled and limited by the rationality of land use structure.
摘要在西北干早地區，土地利用結構的合理與否對區域生態環境和經濟建設具有直接制約作用。
