The moat that flows through the city and enters the river is called the outer Qinhuai River. The one that flows into the city enters the city from Dongshuiguan, and the one that exits from Xishuiguan is called Inner Qinhuai.
The moat that flows around the city into the river is called the outer Qinhuai River. Those flowing into the city enter the city from the East Shuiguan and leave the city from the West Shuiguan, which is called the Inner Qinhuai River.
The moat that flows around the city into the river is called Waiqinhuai. What flows into the city enters the city from the east water and leaves the city from the west water, which is called Inner Qinhuai.