niger Morocco

例句：

1. 1.The Niger River is the longest riverin West Africa.
   尼日尔河是西非最长的河流。
2. 2. TheNiger River is asource of water for many Africancountries.
   尼日尔河是许多非洲国家的水源。
3. 3. The Niger River isfamous for its beautiful scenery and wildlife.
   尼日尔河以其美丽的风景和野生动物而闻名。