《新唐书·列传·卷一百四十六》
后来，吐谷浑与吐蕃相攻，都上书来指责对方，并来请求援兵。皇帝两方都不答应。
既而与吐蕃相攻，上书相曲直，并来请师，天子两不许。
Later, Tugu Hun and Tubo fought against one another, and both submitted memorials accusing the other side of wrongdoing and asking for reinforcements. The emperor refused both of them.
<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: 既而与吐蕃相攻，上书相曲直，并来请师，天子两不许。 现代汉语: 后来，吐谷浑与吐蕃相攻，都上书来指责对方，并来请求援兵。皇帝两方都不答应。 [/INST] Later, Tugu Hun and Tubo fought against one another, and both submitted memorials accusing the other side of wrongdoing and asking for reinforcements. The emperor refused both of them.</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: 既而与吐蕃相攻，上书相曲直，并来请师，天子两不许。 现代汉语: 后来，吐谷浑与吐蕃相攻，都上书来指责对方，并来请求援兵。皇帝两方都不答应。
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Later, Tugu Hun and Tubo fought against one another, and both submitted memorials accusing the other side of wrongdoing and asking for reinforcements. The emperor refused both of them.
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