Muaj sijhawm tsawg dua thiab tsawg dua kom txog thaum kawm tiav, thiab ntau tus menyuam kawm ntawv twb tau xav txog tias lawv yuav hnav dab tsi rau hnub tseem ceeb no. Thiab, raws li txoj cai, qhov hnav zoo nkauj dua, zoo dua. Tom qab tag nrho, txhua tus ntxhais npau suav ntawm kev dhau los ua poj huab tais.
Tab sis hauv kev nrhiav qhov no, qee tus ntawm lawv xaiv tsis yog qhov hnav zoo tshaj plaws thiab dhau los ua lub ntsiab lus ntawm kev sib tham ntawm txhua tus neeg tam sim no.
