Ivalve licandelo lolawulo elisebenzisa indawo eshukumayo ukuvula, ukuvala, okanye ukuvala ngokuyinxenye indawo enye okanye ngaphezulu okanye iipaseji ukuze ukuhamba kolwelo, umoya, okanye okunye ukuhamba komoya okanye imathiriyeli eninzi inokuphuma, ivalwe, okanye kulawulwa isixhobo;ibhekisa nakwi...
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