中國將500萬頭豬趕入沙漠，竟然和內蒙古產生了神奇的反應，各國紛紛上門請求合作#科普#科普频道
Synopsis
百态观察” 带你看懂那些牛到不行的超级工程！🏗️ 从跨海大桥到超高层建筑，用大白话讲明白其中的门道～ 硬核科普也能很有趣！
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