No. Due to the various terrains around the world, rivers flow in different directions under the influence of terrain.

The main rivers flowing from west to east in the world include: Yangtze River, Yellow River, Amazon River, etc. The main rivers flowing from east to west include Congo River, etc. The main rivers flowing from north to south include Lancang River, Tingjiang River, Mississippi River, etc. The main rivers flowing from south to north include Nile River, etc.

Tingjiang River is a tributary of Hanjiang River that flows into the South China Sea of ​​Guangdong Province. Because it flows from north to south, according to the eight trigrams, it is called "Dingshui". Later, "Ding" was added with water to form "Ting", forming the name of "Tingjiang". It is located in the western part of Fujian Province. It originates from the northern slope of Muma Mountain in Zhiping Township, Ninghua County, on the southeast side of the southern section of Wuyi Mountain. It flows through Changting, Wuping, Shanghang, Yongding County, and Fengshi Town, Yongding County, and enters Guangdong Province. It is called Hanjiang River after it merges with Meijiang River at Sanheba, Dapu County. Tingjiang River has many tributaries, and the tributaries with a drainage area of ​​more than 500 square kilometers include: Zhuotian River, Taolan River (also known as Xiaolan River), Jiuxian River, Huangtan River, Yongding River, Jinfeng River, etc.

The direction of the drainage basin or the main stream has a certain impact on the melting time of ice and snow. If the drainage basin is southward, the snow may melt faster and form runoff or infiltrate into the soil; if the drainage basin is northward, the winter snow often starts to melt as late as the spring of the following year