fragile ecosystem造句

例句与造句

1. western africa is characterized by a very fragile ecosystem
   西非的生态系统相当脆弱。
2. these and other pollutants affect human health, damage fragile ecosystems, reduce visibility, and even damage property
   这些污染物影响着人类的健康，破坏脆弱的生态系统，降低可见度，甚至造成财产的损失。
3. It's difficult to find fragile ecosystem in a sentence. 用fragile ecosystem造句挺难的