Umlawuli wokukhula kwezityalo ligama eliqhelekileyo kudidi lwezinto zokwenziwa kweekhemikhali ezinefuthe lolawulo ekukhuleni nasekukhuleni kwezityalo. Ilawula izityalo kubandakanya ukuqhekeka kokulala, ukukhuthaza ukuhluma, ukukhuthaza ukukhula kwesiqu kunye namagqabi, ukukhuthaza ukwakheka kweentyatyambo, ukukhuthaza ...
Funda ngokugqithisileyo