Что думаешь? Оцени!
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。关于这个话题，夫子提供了深入分析
北京市市民热线服务中心副主任冯颖义。
Last year a group of researchers from Nasa, the University of Plymouth and University of Texas called on the UN to include the protection of Earth's orbit in its sustainable development goals.
Read the full story at The Verge.