Ua ntej, nws muaj feem xyuam rau qhov kub ntawm cov zaj duab xis tshuab tshuab. Peb yuav tsum xyuas kom meej tias qhov ntsuas kub ntawm cov cuab yeej siv nws tus kheej thiab qhov tshwj xeeb sab hauv tsev yog nyob rau hauv qhov tsim nyog, txhawm rau xyuas kom meej tias cov cuab yeej tuaj yeem ua haujlwm tau zoo. Yog tias qhov kub thiab txias tshaj qhov ntsuas kub, ces nws yuav ua rau cov khoom siv ntau dhau, feem ntau cuam tshuam rau qhov tseeb ntawm kev tsim khoom thiab ua rau muaj teeb meem.
Qhov thib ob, nws muaj feem xyuam rau lub cev kauv ntawm lub tshuab tshuab zaj duab xis, uas yog qhov tseem ceeb ntawm kev ua haujlwm. Thaum peb yuav nws, peb yuav tsum txiav txim siab seb tus qauv twg yog raws li nws. Qhov no yog ib feem tseem ceeb heev.
Thib peb, nws muaj feem xyuam rau lub tshuab cua txias ntawm cov yeeb yaj kiab tshuab tshuab. Keeb kwm, nws txoj haujlwm tseem ceeb yog ua lub luag haujlwm txias. Hauv qhov no, tau kawg peb yuav tsum xyuam xim rau qhov ua tau zoo hauv qhov no. Cov no yog peb yam ntawm zaj duab xis tshuab tshuab ntau lawm. qhov txuas tseem ceeb tshaj plaws.
