ሳይንስየአፍላቶክሲን የምግብ ብክለት To play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTesfalem Waldyes20 መጋቢት 2009ረቡዕ፣ መጋቢት 20 2009https://p.dw.com/p/2aGJKማስታወቂያ