Peb yog ib qho ntawm cov kws tshaj lij evora tsheb qhov chaw tuam ntxhab thiab cov muag khoom rau ntau tshaj 30 xyoo. Thov so assured mus yuav cov khoom zoo evora qhov chaw ntawm tus nqi sib tw los ntawm peb lub hoobkas. Tiv tauj peb rau cov lus qhia luv nqi.