What does one river, one river and one sea refer to?

Huangpu River, Suzhou River, Qili Sea.

After querying relevant information on Sohu.com, we can see that one river refers to the Huangpu River, one river refers to the Suzhou River, and one sea refers to the Qili Sea. The use of Baoshan, Fengxian, and Lingang New Areas that are close to the sea Regional advantages to create domestic and international dual circulation highlights.