六位美国总统曾试图处理朝鲜的核武器计划。全都失败了。唐纳德·特朗普希望再试一次——但金正恩会同意再次会面吗？朝鲜希望美国放弃解除武装的要求
Six American presidents have tried to deal with North Korea’s nuclear weapons programme. All have failed. Donald Trump would like another shot—but will Kim Jong Un agree to meet again? North Korea wants America to drop demands for disarmament