Hikelok muaj cov khoom lag luam ntau ntau yam thiab cov khoom siv hluav taws xob, cov khoom siv lub zog, cov txheej txheem ua haujlwm, cov txheej txheem ua ntej, cov cuab yeej ntsuas thiab cov cuab yeej siv tes.
Hikelok cov cuab yeej thiab cov khoom siv npog lub raj raj bender, lub raj ua kev sib dhos, cov khoom lag luam gimes, Universal admin txhawb nqa.
