Kuv xav li ntawd. Xav txog cov khoom siv, peb yuav siv cov thawv xa khoom thib ob los hloov cov thawv ntim khoom. Thib ob txhais tes xa khoom ntim yog cov thawv qub uas tau raug tshem tawm. Tus nqi yog qhov pheej yig dua li ntawm cov thawv xa khoom tshiab. Yog li ntawd, nws yog qhov pheej yig dua los yuav cov khoom siv hauv tsev dua li cov khoom siv hauv tsev. Xav txog tus nqi tsim khoom, lub thawv ntim khoom tsim los ntawm peb lub Hoobkas tau ua tiav hauv lub hoobkas, thiab cov khoom tiav tau txais mus thiab xa mus rau tus neeg siv khoom ntawm hiav txwv. Thaum lawv tuaj txog ntawm cov neeg tuaj yeem chaw nyob, lawv tuaj yeem siv ncaj qha tom qab dej thiab hluav taws xob txuas nrog. Cov txheej txheem kev tsim kho ntawm cov tuam tsev cib ua kom zoo, lub sijhawm tsim kho ntev, thiab cov nqi ua haujlwm raug txo qis. Xav txog lub tsev kho kom zoo nkauj, lub thawv nyob hauv peb lub Hoobkas muaj ntau yam kho kom zoo nkauj sib txawv, thiab cov tsos muaj peev xwm hloov tau raws li cov neeg siv khoom nyiam.
