The US interior department has grounded hundreds of Chinese-made drones while it investigates the security of its entire drone programme, one of the biggest in the US government.
美國內政部(Department of the Interior)已停飛數百架中國制造的無人機,同時對其整個無人機計劃的安全性展開調查。該部擁有美國政府部門最大規模的無人機機隊之一。
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