KIM JONG UN, North Korea's leader, has made no secret of his goal of developing a nuclear-tipped missile with enough range to destroy cities in America. What has confounded many experts is the speed at which his engineers are getting there. Only last year the consensus was that they would not succeed before 2020; now the target seems achievable within a year.
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机译：朝鲜领导人金正恩（KIM JONG UN）毫不掩饰他的目标，即开发一种核弹头导弹，其射程足以摧毁美国的城市。使许多专家感到困惑的是他的工程师到达那里的速度。仅在去年，人们一致认为他们不会在2020年之前获得成功。现在这个目标似乎可以在一年内实现。
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