《资治通鉴·晋纪·晋纪十二》
刘琨、段匹不能单独留守固安，也回师蓟州。
琨、匹磾不能独留，亦还蓟。
Liu Kun and Duan Pi, unable to hold Gu'an alone, also led their troops back to Ji Province.
<s>[INST] Translate the given Classical Chinese text into modern Chinese, then provide an English translation that captures the nuances of both versions. Classical Chinese: 琨、匹磾不能独留，亦还蓟。 [/INST] Modern Chinese: 刘琨、段匹不能单独留守固安，也回师蓟州。 English Translation: Liu Kun and Duan Pi, unable to hold Gu'an alone, also led their troops back to Ji Province.</s>
Translate the given Classical Chinese text into modern Chinese, then provide an English translation that captures the nuances of both versions. Classical Chinese: 琨、匹磾不能独留，亦还蓟。
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Modern Chinese: 刘琨、段匹不能单独留守固安，也回师蓟州。 English Translation: Liu Kun and Duan Pi, unable to hold Gu'an alone, also led their troops back to Ji Province.
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