2021年发生的5件地球友好的事
蝴蝶数量的上升是2021年发生的一系列积极环境变化之一。 Image: Gary Bendig/Unsplash
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环境及自然资源安全
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世界经济论坛是一个独立且中立的平台，以上内容仅代表作者个人观点
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