Lub luag haujlwm ntawm kev kho vajtse rau ntau yam yog heev, tseem ceeb heev. Ib yam li lub neej ntawm ib daig ntawm rooj tog. Lub luag haujlwm ntawm lub cuab yeej yog heev, heev loj.
Kho vajtse yog ib qho tseem ceeb ntawm lub txee thiab qhov feem ntau tsis pom kev. Kev siv tsis zoo ntawm kev kho vaj tse thiab kev kho kom zoo tsis tuaj yeem ua rau lub neej luv luv hauv lub txee.
Rau rooj tog, qhov chaw ntawm cov xim tsis yog qhov nyuaj.
Chav ua noj khoom muaj feem xyuam yog muaj cov khoom qab zib, pob tw, hinges, swb ntsia, thiab lwm yam. Cov khoom siv ntawm cov khoom no feem ntau yog txau ntawm cov hlau tsis muaj hlau los yog hlau, thiab muab tshuaj tsuag. Tag nrho cov cuab yeej yuav tsum tau cia qhuav. Yog nws ntub, nws yuav tsum tau qhuav hauv lub sij hawm los tiv thaiv dej cim lossis xeb. Rau cov hinges thiab xaub ntsia, nws yog qhov zoo tshaj yog ntxiv roj nplua ntsev txhua hnub los xyuas kom qhib qhov qhib thiab kaw cov khoom. Tsis txhob khawb cov khoom hnyav thiab cov khoom ntub, yog tias xoob, kho cov ntsia hlau ntsia tom qab.