PEB COV KHOOM SIV
Ua raws li lub tswv yim ntawm "zoo, ua tiav yav tom ntej," Peb tsim kom muaj qhov zoo tshaj plaws ntawm cov khoom lag luam thiab yog li peb tsim kev sim ua kom zoo dua qub thiab txhim kho cov khoom lag luam kom zoo nkauj Kuaj cov khoom siv, cov cuab yeej siv txhua yam, cov yam ntxwv nto thiab txwv kev sim {}}
