Cov thawv faib khoom yog cov yam ntxwv ntawm lawv qhov me me, kev teeb tsa yooj yim, kev ua haujlwm tshwj xeeb, qhov chaw ruaj khov, kev teeb tsa tshwj xeeb, tsis muaj qhov chaw txwv, kev siv dav dav, ruaj khov thiab txhim khu kev qha, kev siv qhov chaw siab, hneev taw me me, thiab cov txiaj ntsig ib puag ncig. Lawv ua lub chaw tswj hwm rau kev faib tawm ntawm hluav taws xob lub zog ntawm ntau yam khoom siv hauv cov khoom siv hluav taws xob, ntseeg tau txais lub zog los ntawm cov khoom siv hluav taws xob thiab cov khoom noj kom raug rau lub nra, thiab tseem ceeb heev rau kev txiav txim siab cov neeg siv khoom txaus siab nrog lub zog zoo. Kev txhim kho kev lag luam kev ntseeg siab ntawm lub thawv xa hluav taws xob yog lub hom phiaj ntawm kev tsim cov haujlwm siab - zoo.
Lub hom phiaj ntawm cov thawv xa khoom: Txhawm rau faib cov hluav taws xob hluav taws xob kom muaj nuj nqis thiab pab txhawb kev qhib thiab kaw haujlwm. Lawv muab kev tiv thaiv kev nyab xeeb siab thiab tuaj yeem ua rau pom qhov xwm txheej txuas ntxiv mus.
