Cov iav pleev plhu txhuas muaj qhov ua haujlwm ntawm kev khaws cov ntsiab lus ntawm cov khoom kaw, thiab muaj cov haujlwm ntawm kev tiv thaiv tub sab, qhib thiab kev nyab xeeb. Yog li ntawd, nws yog dav siv nyob rau hauv cov tshuaj pleev ib ce fwj khoom lag luam xws li cov naj hoom fwj. Yog li ntawv, txhuas npog yog qhov kev lag luam nce qib ntawm cov tshuaj pleev ib ce ntim, xws li naj hoom, khoom tu tawv nqaij, tshuaj pleev ib ce thiab lwm yam. Nws yog cov khoom tseem ceeb ntawm lub raj mis ntim khoom ntim.
Peb (Cov Thawj Coj Cov Txiaj Ntsig Ntim Chaw Lag Luam) tuaj yeem muab kev daws teeb meem txhuas rau koj kom ua tau raws li koj cov cai.
