Switirhisiwa swa tihoyisi swi tlanga xiave xa nkoka eka tiindasitiri to hambana, ku tiyisisa ku hundziseriwa loku hlayisekeke na ku tirha kahle ka swihalaki na tigasi. Kusuka eka tifemeni to endla swilo kuya eka tindzhawu to aka, switirhisiwa leswi i swiphemu swa nkoka leswi hlanganisaka tihoyisi eka switirhisiwa, leswi pfumelelaka matirhelo yo pfumala swirhabyani. Hambiswiritano, ku hlawula rig .
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