Cov khoom phais tom qab phais yog tus qauv tshiab, los ntawm kev ua haujlwm zoo heev, kev ua haujlwm ntawm kev phais mob nce qib siab. Peb zoo tag nrho rau txhua qhov nthuav dav ntawm cov khoom phais mob tom qab phais mob , lav tau theem zoo, yog li coj koj cov khoom zoo meej. Mecanmed yog tus kws tshaj lij Tuam Tshoj tshaj tawm kev phais cov khoom siv thiab cov khoom lag luam, yog tias koj tab tom nrhiav cov khoom siv kev phais mob tshaj tawm nrog tus nqi them qis, tham txog peb tam sim no!