Cov ntaub so uas tsis muaj suab nkauj ntev ntev ntawm qhov chaw nqus dej hauv nruab nrab, thiab "pob ntseg" {{0} zoo nkauj tis rau txhua sab. Ntxuav koj ob txhais tes ua ntej siv, tom qab qhib lub pob, hle daim ntaub nplaum, muab ob sab hauv qab ntawm cov ris tsho hauv qab. Tom qab ntawd rhuav cov ntawv nplaum me me ntawm sab nraum qab ntawm ib tis, khawm tis sab nraud thiab ntsaws nws kom nruj nreem rau sab hauv qab, thiab kho lwm sab hauv tib txoj kev. Vim yog cov nplaum nplaum nplaum hauv qab thiab txhim kho ob sab, cov phuam huv huv yog txuas rau hauv qab ntawm cov ris tsho hauv qab.
