1.Umbhulu wokusebenzela waye ngekuthi ungenzi ukuphikisana, futhi isicelo sikufuneka siphumeleyi ngaphandle kweglasu
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2.Iso amandla nokuba YBB, noma ayithethwe ngokubanzi ngeenkcwadi zokugcina
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3.Ispefikeshini zikhona phakathi kwe-1ml kunye ne-30ml
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4.Ngqo noma inyathi, ukuxhapha usetyenziswa
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