Yog tias nws tsis cuam tshuam rau qhov tsos, nws yog qhov zoo tshaj plaws tsis txhob muab tshem tawm.
Dab tsi yog cov haujlwm ntawm cov-ntaub npuag?
1. Tiv thaiv kom tsis txhob muaj plua plav los nkag rau cov qauv sab hauv ntawm lub rooj zaum
2, noo noo
3, npog dab tuag. Lub puab sab hauv ntawm cov rooj zaum muaj cov ntoo ua pob txha thiab cov thav duab, lub caij nplooj ntoos hlav serpentine, ib daim ntaub qhwv, pom daim txhuam cev, pom qhov sib faib, thiab qhov zoo li, vim hais tias tag nrho cov duab zoo nkauj, daim ntaub tsis-ntaub thaiv npog tau nyob hauv qab.
4, txhawm rau tiv thaiv cov kab tsuag nkag mus, yog, chav chaw nyob tam sim no tau txhim kho tus nas yog dab tsi tsis tshua muaj nyob hauv cov tsev siab, tab sis nws muab cov haujlwm no.
Nws yog qhov zoo tshaj plaws tsis tshem tawm cov lus saum toj no yog tias nws tsis cuam tshuam rau koj lub ntsej muag, thiab nws raug nquahu kom hloov nws thaum cov ntaub qhwv tsis-tau tawg. Tshwj xeeb, saib koj tus kheej.
