Daim ntawv qhia zais cia rau kev zoo siab

Qhov kev kawm kom tso siab rau sab ntsuj plig tsis txhais hais tias yog thawb teeb meem tawm ntawm peb mus. Nws txhais tau tias ua chaw rau kev paub tshiab thiab kev kawm.