Feem ntau, hauv cov txheej txheem ntawm kev kho, ua tiav lossis tom qab cov teeb meem ntawm cov kev teeb tsa lossis rooj tog zaum ntawm cov ntsia hlau,...
Yuav ua li cas xaws cov ntaub ntawv Nikidu ntawm lub rooj zaum yog tias lub rooj zaum yog qhov zoo, thiab tus upholsy?Nws yog qhov yooj yim los siv peb...