马皮

Geographers still argue over exactly where the White Nile rises.

为白尼罗河究竟发源于何处，地理学者至今仍聚讼不已。

And, this is my first article and English is not my native language, so don't be too hard on me.

而且，这是我的第一篇文章和英语不是我的母语，所以不要对我太硬。