Dental Floss

Raws li ib qho ntawm cov tuam txhab kev paub ntau tshaj plaws, peb zoo siab tos txais koj los yuav cov luv nqi kho hniav muag ntawm no los ntawm peb lub hoobkas. Tag nrho cov khoom tu cov pos hniav yog nrog cov khoom zoo thiab cov nqi sib tw.