N-UNCOUNT [usually NOUN n] (战争中不给敌人留下任何有用之物的)焦土(政策) A scorched earth policy is the deliberate burning, destruction, and removal by an army of everything that would be useful to an enemy coming into the area. (战争中不给敌人留下任何有用之物的)焦土(政策)
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He employed a scorched-earth policy, destroying villages and burning crops.
他采取了焦土政策，摧毁了村庄，烧掉了庄稼。
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...an army scorched earth campaign.
陆军部队的焦土行动