Video: 310 miles of steel wired sensor fence built at Yunnan to stop people with COVID19 illegally entering China. The fence is completed in months shocks the Americans compared to their fence at US-Mexican border.

Video: 310 miles of steel wired sensor fence built at Yunnan to stop people with COVID19 illegally entering China. The fence is completed in months shocks the Americans compared to their fence at US-Mexican border. 在雲南建造了 310 英里的鋼線傳感器圍欄，以阻止 COVID19 患者非法進入中國。 與他們在美墨邊境的圍欄相比，圍欄在幾個月內完工，這讓美國人感到震驚.
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