Cov khoom kuaj
Hais txog kev kuaj cov khoom los ntawm cov tshuab thiab cov khoom siv tom qab lawv tau tsim los ua kom tau raws li tus neeg siv khoom tus qauv.
Kev Tswj Xyuas Zoo
Hais txog cov khoom mus rau hauv cov khoom tiav, ua ntej xa khoom ntawm qhov kev kuaj zaum kawg, cov khoom tsim nyog tuaj yeem xa tuaj.
Kev soj ntsuam tshaj tawm
Hais txog qhov kawg RANDOM tshuaj xyuas ntawm cov khoom ua ntej nws raug xa mus rau kev lis kev cai, thiab tsuas yog tias nws ua tau raws li tus qauv xa tawm tuaj yeem tso tawm.