《资治通鉴·汉纪·汉纪十三》
单于认为是汉朝将其尊贵的使臣杀了，所以将路充国扣留匈奴，不放他回国。
单于以为汉杀吾贵使者，乃留路充国不归。
The Chanyu believed that the Han had killed its noble envoy, and so detained Lu Chongguo in the Xiongnu and would not let him return.
<s>[INST] 对于下面每对文言文和现代汉语段落, 请创作一个能够体现核心信息的英语翻译: 文言文: 单于以为汉杀吾贵使者，乃留路充国不归。 现代汉语: 单于认为是汉朝将其尊贵的使臣杀了，所以将路充国扣留匈奴，不放他回国。 [/INST] The Chanyu believed that the Han had killed its noble envoy, and so detained Lu Chongguo in the Xiongnu and would not let him return.</s>
对于下面每对文言文和现代汉语段落, 请创作一个能够体现核心信息的英语翻译: 文言文: 单于以为汉杀吾贵使者，乃留路充国不归。 现代汉语: 单于认为是汉朝将其尊贵的使臣杀了，所以将路充国扣留匈奴，不放他回国。
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The Chanyu believed that the Han had killed its noble envoy, and so detained Lu Chongguo in the Xiongnu and would not let him return.
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