Lwm qhov laj thawj vim li cas qee cov khoom siv hauv tsev ua haujlwm tau yooj yim tawg yog vim qhov teeb meem ntawm ci. Feem ntau, nws yog vim nws tsis tau ci tag nrho. Koj tuaj yeem siv lub tshuab laminating los nias cov av nplaum mos rau hauv cov ntawv nyias rau kev sim. Tom qab ci, cov av nplaum muag muaj tawv thiab yuav tsis tawg thaum folded hauv ib nrab? Yog tias nws yog ib qho thaiv zoo li kev ua haujlwm thiab tsis tuaj yeem kuaj tau los ntawm folding nws hauv ib nrab, siv koj cov ntiv tes los npog qhov chaw ntawm qhov chaw ua haujlwm thiab nias cov ntsia hlau ua kom tawv. Yog tias cov qhab nias rov qab tom qab ib ntus, nws txhais tau tias lawv tau ci dhau los. Yog tias cov cim tsis ploj, nws txhais tau tias lawv tsis tau ci dhau los.
Tau kawg, tseem muaj ib qho kev ceeb toom kom nco ntsoov tias tom qab ci, nws yuav tsum tau txias hauv qhov cub ua ntej nws tawm. Yog tias qhov chaw ua haujlwm raug tshem tawm ua ntej nws txias, nws yooj yim tawg yog tias nws txav ncaj qha los ntawm qhov chaw kub mus rau qhov chaw txias. Tsis txhob siv dej txias los yaug nws. Tshwj tsis yog tias nws tau txias thiab xav tau xuab zeb.
