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发帖数: 1709 | 1 【 以下文字转载自 Military 讨论区 】
发信人: beijingren3 (), 信区: Military
标 题: How China pushed back the desert and turned it into green space
发信站: BBS 未名空间站 (Sat May 4 09:18:11 2019, 美东)
https://www.youtube.com/watch?v=examEbxVSAI | a******5
发帖数: 2062 | 2 Remarkable achievement, my hat off to these people. But after so many years,
why are they still not machnized? Why haven't they created some kind of
machine to make it more effective and less punishing? |
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