ሳይንስ To play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTesfalem Waldyes Erago11 ሚያዝያ 2009ረቡዕ፣ ሚያዝያ 11 2009 https://p.dw.com/p/2bY7Iማስታወቂያ