EEGU分类：英语演讲稿 文档格式：word文档 授权方式：电脑版免费下载 全文字数：4781字 下载次数：87 上传时间：2019/12/24 10:46:38 |
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olympics of mankind,
celebration of green nature
good morning, everybody!
lets start with the very simple question: do you know the tree coverage rate of beijing? w...
