scorched-earth policy

劍橋詞典

the act of an army destroying everything in an area such as food , buildings , or equipment that could be useful to an enemy
焦土政策（軍隊燬掉某個地區(qū)的食品、建築、設(shè)備等一切可能爲(wèi)敵所用的東西的政策） 返回 scorched-earth policy