Words and phrases:
1.well-manicured expanses of grass
修剪整齐的大片草地
2. choke out biodiversity
破坏生物多样性
3. prairies=meadows 草原
4.an edited excerpt of the conversation
谈话摘录
5.sequester v
1>=sequestrate sth( law 律 ) to take control of sb's property or assetsuntil a debt has been paid 扣押（债务人资产）
e.g Lawns sequester atmospheric carbon, produce oxygen and prevent erosion. 草坪吸收大气中的碳，产生氧气，防止侵蚀。
2> sequester sb ：to keep a jury together in a place, in order to prevent them from talking to other people about a court case, or learning about it in the newspapers, on television, etc. 隔离（避免陪审团与公众接触）
6.runoff water 活水
Thoughts:
The article puts forward problems caused by artificial lawns in the cities and countries of violating biodivesity and resouce waste.
Lawns are once seen as a symbol of civilization and a way of life.However,they are also the burden of modern life.
How to balance the nature as well as artificial one and ecological circle is still the urgent mission for us to tackle.
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