《明史·志·卷六十三》
丹水则虽然水势与沁水相同，然而丹水口已经辟开，从修武以下都成为安稳之水，建立闸门修筑堤坝，可以留传永久的利益。 
丹水则虽势与沁同，而丹口既辟，自修武而下皆成安流，建闸筑堰，可垂永利。
Although the Dan River is as big as the Qin River, the mouth of the Dan River has already been opened up, and from Xiuwu onwards, it has become a stable river. Building a lock and a dam can bring long-term benefits.
<s>[INST] Transpose the following Modern Chinese text into Classical Chinese: 丹水则虽然水势与沁水相同，然而丹水口已经辟开，从修武以下都成为安稳之水，建立闸门修筑堤坝，可以留传永久的利益。  [/INST] 丹水则虽势与沁同，而丹口既辟，自修武而下皆成安流，建闸筑堰，可垂永利。</s>
Transpose the following Modern Chinese text into Classical Chinese: 丹水则虽然水势与沁水相同，然而丹水口已经辟开，从修武以下都成为安稳之水，建立闸门修筑堤坝，可以留传永久的利益。
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丹水则虽势与沁同，而丹口既辟，自修武而下皆成安流，建闸筑堰，可垂永利。
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