Muaj ntau yam koj tuaj yeem muab lub neej thib ob. Nws yog kev txaj muag thaum muaj plua plav hauv lub txee dai khaub ncaws. Piv txwv li, los ntawm cov txiv neej tshiab lub tsho tshiab lub tsho, uas rau ib qho laj thawj dab tsi tsoo, koj tuaj yeem ua khaub ncaws zoo nkauj rau ib tus me nyuam ntxhais rau ob peb feeb. Xws li ib pab tub rog yuav ua tau zoo thiab nws zoo nkaus li zoo kawg.
Ua li no, koj yuav xav tau: txiv neej lub tsho, txiab, cov ntxhais hnav ris tsho los siv nws ua qauv, xaum qhuav.
Ua cov hnav ris tsho ntawm lub tsho, qhia raws cov contour nrog cov npoo ntawm ob peb centimeters thiab txiav cia cov kab cog. Tam sim no txhua yam koj yuav tsum tau ua yog xaws cov npoo ntawm cov ris tsho thiab xaws cov roj hmab band los ntawm kev txiav.
Txhawm rau hnav cov khaub ncaws zoo nkauj zoo nkauj, koj tuaj yeem muab cov pob ribbons lossis cov xim khawm. Yog tias muaj ib qho chaw poob saum lub tsho, nws tuaj yeem raug kaw los ntawm kev siv.
Ib qho chaw