| 单词 | healthy ecosystem |
| 释义 | healthy ecosystem The pond builds up a healthy ecosystem, in which organisms such as zooplankton consume bacteria and the phytoplankton that becomes algae. Times, Sunday Times Far from being a menace, they are playing a vital role in sustaining a healthy ecosystem. Times, Sunday Times Only a healthy ecosystem can support a predator. Times, Sunday Times To reverse this cycle we need to manage the sea as a healthy ecosystem, not just a parlour for the fishing industry. Times, Sunday Times A healthy ecosystem, therefore, will have patches of land at different levels of succession. Retrieved from Wikipedia CC BY-SA 3.0 |
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