萨赫勒地区的人们经常面临干旱和粮食短缺的挑战。

People in the ___Sahel often face challenges of drought and food shortages.

萨赫勒是一个植被稀少的干旱地区，位于沙漠和热带草原之间。

The ___Sahel is a dry region with sparse vegetation, lying between the desert and the savanna.