Muaj ntau tus ntxhais tau tshwm sim xa tus txiv leej tub mus kav khw nrog cov npe ntawm kev yuav khoom. Ib qho txawm xa rau cov tshuaj pleev ib ce. Saib seb yuav muaj dab tsi tawm ntawm nws.
Muaj ntau tus ntxhais tau tshwm sim xa tus txiv leej tub mus kav khw nrog cov npe ntawm kev yuav khoom. Ib qho txawm xa rau cov tshuaj pleev ib ce. Saib seb yuav muaj dab tsi tawm ntawm nws.