《旧唐书·列传·卷一百三十七》
长平王李叔良援兵到了，仁杲才撤兵离去。
长平王叔良援兵至，仁杲解围而去。
Only when Li Shuliang, the King of Changping, arrived with reinforcements, did Rengo withdraw his troops and leave.
<s>[INST] 请将下面的文言文翻译成英语: 长平王叔良援兵至，仁杲解围而去。 [/INST] Only when Li Shuliang, the King of Changping, arrived with reinforcements, did Rengo withdraw his troops and leave.</s>
请将下面的文言文翻译成英语: 长平王叔良援兵至，仁杲解围而去。
user
Only when Li Shuliang, the King of Changping, arrived with reinforcements, did Rengo withdraw his troops and leave.
assistant