Zidziwitso Pamakina ndi kupanga, chinthu chimodzi chomwe chimagwira ntchito yofunika kwambiri ndi thanki ya mpweya. Matanki osungira mpweya, omwe amadziwikanso kuti zombo zokakamiza, amagwiritsidwa ntchito kusunga mpweya woponderezedwa pazinthu zosiyanasiyana. Kuchokera pakupanga pneum...
Werengani zambiri