【词汇大师】生态系统(2/2)

英语自学网

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今天要谈的话题是生态系统。全球的生态关系到我们每一个人，听听专家说些什么吧。
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本篇听写只听写嘉宾的话，主持人的话不需要听写。
主持人的话：①"And the point I understood was that we should be looking at our undervalued ecosystems -- or we should value our ecosystems more in comparison.""Polar bears is another great example. So we tend to focus on these large animals and we often tend to manage and set up preserves for these large animals. And those animals are charismatic, they're pretty, they're nice to look at, but they're often not the animals that provide the ecosystem services that we value most."
"That's right. One of the problems with our current economics is that we don't do a good job of putting a value on the services that we get from nature. So it's easy to assign a value to what a power plant uses or produces, or to what a sewage treatment plant cleanses our water. It's not easy to put an economic value on what nature does for us.”