Cov khoom no tsuas yog cov neeg siv khoom cov ntaub ntawv tso tawm, tsis yog muag, thiab siv xwb.
Peb lub tuam txhab tshwj xeeb hauv kev muab cov khoom pwm zoo rau ntau yam kev lag luam.Hauv tsab xov xwm no, peb yuav qhia peb cov khoom pwm, suav nrog cov txheej txheem tsim khoom, cov tshuab siv hauv cov txheej txheem tsim khoom, xaiv cov khoom pwm, yuav ua li cas txiav txim siab qhov zoo ntawm pwm, thiab cov kev pabcuam peb muab.