Intsimbi ayikho kuphela ulwelo lothumelo kunye nezinto eziqinileyo ezinomgubo, utshintshiselwano lobushushu, ukwenziwa kwamalungu omatshini kunye nezikhongozeli, yintsimbi eyongayo. Ukwakhiwa kwesakhiwo kunye negridi yokuvelisa umbhobho wensimbi, iintsika kunye nenkxaso yomatshini, kunokunciphisa ubunzima kunye nokugcina i-20 ukuya kwi-40% yesinyithi, kwaye ingakwazi ...
Funda ngokugqithisileyo