这座城市就像一个“高效环”在运作——一切都可循环利用。
The city operates as an efficient loop - everything is recycled for something else.
用可循环利用的棉布袋或者枕头套来收集糖果，而不是塑料袋。
Collect the sweets in re-useable cotton bags or pillow cases, instead of plastic bags.
我们有足够的混凝土和钢材来建设上百万的风力涡轮机，而且它们都是可循环利用的。
Enough concrete and steel exist for the millions of wind turbines, and both those commodities are fully recyclable.
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