health state of ecological system
英
美
- 生态系统健康
双语例句
- Research Review on Wetland Ecosystem Health.
湿地生态系统健康研究进展。 - Biju said that frogs in India, like frogs in South America, are considered an important indicator species for the health of an ecosystem.
比优称印度的青蛙和南美的青蛙一样，被认为是生态系统健康的一个重要指示物种。
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