《资治通鉴·周纪·周纪五》
赵王说： 秦国想灭掉赵国已是不遗余力，现在当然是因为疲倦了才退去。 
王曰： 秦不遗馀力矣，必以倦而归也。 
King Zhao said: “The state of Qin has spared no effort to destroy Zhao. Now, it must have retreated because it was exhausted.”
<s>[INST] Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 王曰： 秦不遗馀力矣，必以倦而归也。  Updated: 赵王说： 秦国想灭掉赵国已是不遗余力，现在当然是因为疲倦了才退去。  [/INST] King Zhao said: “The state of Qin has spared no effort to destroy Zhao. Now, it must have retreated because it was exhausted.”</s>
Take each pair of old and new sentences and unite them into a single translation that captures the core meaning: Archaic: 王曰： 秦不遗馀力矣，必以倦而归也。  Updated: 赵王说： 秦国想灭掉赵国已是不遗余力，现在当然是因为疲倦了才退去。
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King Zhao said: “The state of Qin has spared no effort to destroy Zhao. Now, it must have retreated because it was exhausted.”
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