Tej zaum koj yuav xav tau ib qho khoom kho sab nraud yog tias koj tsoo koj txhais ceg, pob taws, lossis ko taw. Qhov no tshwm sim ntau dua thaum qhov kev raug mob nyuaj lossis cov tawv nqaij thiab cov nqaij mos raug mob. Cov kws kho mob siv cov fixators sab nraud los tuav koj cov pob txha ruaj khov. Lawv pab koj cov pob txha zoo tom qab muaj xwm txheej phem. Cov kev tshawb fawb tsis ntev los no hais tias exter