单词：deroofing
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单词：deroofing 相关文章
A key stage in the construction of Gongbei tunnel, which will connect south China's Zhuhai city with Macau, has been completed. Pipe roofing has now been installed to reinforce the tunnel, in one of the largest construction projects in China. The Gon
发表于:2019-02-13 / 阅读(144) / 评论(0)
cctv9英语新闻2015年
cctv9英语新闻2015年