Ntau lub tsev noj mov tau txwv cov hnab yas yas vim lawv muaj kev phom sij rau ib puag ncig, thiab tau hloov mus rau lwm daim ntawv hloov chaw. Tab sis, puas yog daim ntawv straw yeej zoo dua rau cov ib puag ncig?
Cov lus teb tsis yooj yim npaum li koj xav:
Thaum nws yog qhov tseeb tias cov ntawv daig ntawv yuav tsis tsim kev puas tsuaj ib yam li cov yas hlua yas, qhov no tsis txhais tau tias lawv tsis muaj teeb meem txhua. Qhov tseeb, ntawv xoob tseem tuaj yeem muaj ntau qhov tsis zoo ib puag ncig, tshwj xeeb yog tias lawv siv tsis raug.
Ua ntej tshaj, cia peb mus saib yam twg uas ua rau cov yas txhaws tsis zoo rau qhov ib puag ncig. Tom qab ntawd, peb mam li saib dua li cas cov ntawv xov sib txawv ua piv rau cov yas hais txog qhov kev cuam tshuam ib puag ncig, thiab vim li cas siv cov ntawv straws yuav tsis yog qhov kev txiav txim siab zoo tshaj plaws rau eco