Crane yapawiri ya trolley yopangidwa ndi zinthu zingapo monga ma mota, zochepetsera, mabuleki, masensa, makina owongolera, njira zonyamulira, ndi mabuleki a trolley. Cholinga chake chachikulu ndikuthandizira ndikugwiritsa ntchito njira yonyamulira kudzera munjira ya mlatho, yokhala ndi ma trolley awiri ndi mitengo iwiri yayikulu ...
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