The Amazon River is undoubtedly the fastest in the world. In terms of flow, the Amazon River has an average flow of 219,000 cubic meters per second, which is about seven times that of the Yangtze River. The annual flow of the Amazon River accounts for 1/5 of the total flow of rivers in the world into the sea. In terms of the basin, the Amazon River basin covers an area of ​​7,050,000 square kilometers, accounting for 40% of the area of ​​South America, which is almost equivalent to the total area of ​​Australia. In terms of the water system, the Amazon River has more than 15,000 tributaries.