《资治通鉴·梁纪·梁纪十八》
又说： 援军既然在南岸，我军说必须在京口渡江。 
又云： 援军既在南岸，须于京口渡江。 
He also said: Since the reinforcements are on the south bank, our army must cross the river at Jingkou.
<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: 又云： 援军既在南岸，须于京口渡江。  现代汉语: 又说： 援军既然在南岸，我军说必须在京口渡江。  [/INST] He also said: Since the reinforcements are on the south bank, our army must cross the river at Jingkou.</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: 又云： 援军既在南岸，须于京口渡江。  现代汉语: 又说： 援军既然在南岸，我军说必须在京口渡江。
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He also said: Since the reinforcements are on the south bank, our army must cross the river at Jingkou.
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