长江全长6300公里,是我国第一大河,在世界上位居第三,仅次于南美洲的亚马逊河和非洲的尼罗河。长江口是我国最大的河口,许多人乘船到了长江口还认为已经进入海洋。就是川沙、南汇的当地人,到江边去也叫做“到海边去”。因为江口确实很大,口门宽达90公里,所以船行其中,视野里仿佛是一个无边无际的海域。长江素有“黄金水道”之称,在口门,自然航道水深最浅处也有六米,这在世界许多大河河口是很 The Yangtze River, with a total length of 6,300 kilometers, is the largest river in China and third in the world, second only to the Amazon in South America and the Nile in Africa. The Yangtze Estuary is the largest estuary in our country and many people have already entered the ocean by boat to the mouth of the Yangtze River. Is Chuansha, Nanhui local people, to the river to go also called “To the beach to ”. Because the estuary is indeed very large, the door wide 90 km, so one of the shipping line, as if in the horizon is a boundless sea. The Yangtze River is known as “Golden Waterway ” said at the gate, the deepest depth of the natural waterway is also six meters, which in many world rivers mouth is very