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沈阳市读者于沛然来信询问京杭大运河穿过五大水系,如何穿过,目前水流是否畅通?现在此答复如下:
In a letter from Peiran, a reporter in Shenyang City, I asked Peking for the passage of the Grand Canal across the five major water systems. Is the current flow of water flowing? Now, the reply is as follows: