For decades, Ethiopia and Sudan have both clashed over the ownership of the Al-Fashaga triangle, a fertile agricultural area nearby to the GERD and its reservoir.

几十年来，埃塞俄比亚和苏丹都在争夺法沙加三角地带所有权，该地带是复兴大坝及其库附近肥沃农业区。

Now, you might have seen an earlier lesson of mine where I talked about " at" , " on" , and " in" when it had to do with time, and we used something called " the triangle method" .

现在，你可能已经看过我之前一节课， 当它与时间有关时， 我谈到了“at” 、“on”和“in” ，我们使用了一种叫做“三角法” 东西。