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Focus on internal as well as external threats.
同时关注内部和外部威胁。
youdao
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The focus of this paper is to try to build URT external cost evaluation system.
本文的重心在于，分析评价城市轨道交通的外部成本。
youdao
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The focus of this paper is to try to build URT external cost evaluation system.
本文的重心在于，分析评价城市轨道交通的外部成本。
youdao