Litlhaloso tsa lintlha tse 2, 4 le 6 ke life ka har'a li-valve tsa lipeipi? Valofo ea oksijene, valve ea phala, tlhahlobo ea mabaka a ho chesa
Litlhaloso tsa lintlha tse 2, 4 le 6 ke life ka har'a li-valve tsa lipeipi? Valofo ea oksijene, phala ea liphaephe, tlhahlobo ea mabaka a ho chesa li-valve U khetholla boholo ba li-valve joang? Na ke "metsotso," "inchi," kapa "DN..." ? Na ua tseba hore na e bolela’ng? Pele ho tsohle, ha re...
lintlha tsa pono