Undoubtedly, it is the world's longest river and has two major tributaries which are White Nile and Blue Nile. Blue Nile is the source of much of the water as well as brings a great deal of fertility to the river Nile. Nile empties into a large delta that consequently empties into the Mediterranean Sea. Its length is approximately is 4180 miles.

      毋庸置疑，尼羅河是世界上最長(zhǎng)的河。其兩個(gè)主要的支流分別為白尼羅河和青尼羅河。青尼羅河為尼羅河提供主要流量，是大部分水的來源。尼羅河流入大型三角洲，而后注入地中海。它的長(zhǎng)度大約是4180英里。

《環(huán)球之旅:世界長(zhǎng)河尼羅河》永久閱讀地址: http://www.jiazhineng.cn/yingyu/4139/