Due to network transmission, most traditional Chinese characters will be automatically converted into simplified Chinese characters, which can not be answered in pure text, but can only be displayed in screenshots. Set the traditional input mode: it can be set in the input method. Select traditional as the setting in the input method, and then switch the input method again, and you can input in traditional or simplified mode.

Generally speaking, "business is booming in the world, and financial resources are abundant in the three rivers" are interlinked. This festive couplet is given to many people who do business, open stores and do business. It means that the business is doing well, prosperous and developed, and there are businesses all over the country, and the financial resources are rolling in. The "four seas" and "three rivers" in couplets do not clearly point to the ground.

"Four Seas" refers to all parts of the country. "Three Rivers" refers to many rivers and waterways in the outflow system.

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Liu Xiang of the Han Dynasty said in "Talking about Frontier Warfare": "There are four seas within the Eight Wastes, and Kyushu within the four seas." According to Yan Shigu, an exegetist in the Tang Dynasty, "Eight Barrens are barren on all sides." So, what about the four seas? Er Ya's younger brother said, "Nineteen One, Buddy, Seven Honors and Six Mans are all over the world." Others think that "Four Seas" is the sea around "Kyushu".

The Book of Rites specifically mentions that the East China Sea, the West Sea, the South China Sea and the North Sea are four seas, but there are no clear sea areas. In Song Dynasty, Hong Mai said that "the four seas are one" in Rong Zhai's essays and thought that "the four seas are one".