ሳይንስየዘንድሮው የምሥራቅ አፍሪቃ የቴክኖሎጂ ውድድርTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTsehay Filatie23 ግንቦት 2015ረቡዕ፣ ግንቦት 23 2015https://p.dw.com/p/4S1wjማስታወቂያ