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Naked aggression and an attempt to change frontiers by force could not go unchallenged.公然的侵略和企图用武力改变边界的行径是不能置之不理的。Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things wo...
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n.边界( frontier的名词复数 )，边境，开发地区的边缘，尚待开发的领域...
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Community leaders want to strengthen controls at external frontiers.社区领导想要加强对小区外围的管理。Human acts have repercussions far beyond the frontiers of the human world.人类行为所产生的影响远远超出人类世界的范围.They are highly interested in the front...