Qhov kev sib sau thiab qib ua yog cov kauj ruam tseem ceeb hauv kev txhim kho cov khoom lag luam kev cai rau txhua tus neeg siv kev cai thiab cov kev qhia tshwj xeeb. Cov txheej txheem cuam tshuam nrog kev siv cov thev naus laus zis thiab cov tswv yim los ua kom tiav cov duab thiab qhov loj me rau txhua cov khoom lag luam, kom paub tseeb thiab ua tau zoo.
