Qhov piv ntawm cov khoom yas rau cov khoom siv roj hmab tsis yog qhov sib txawv. Qhov piv no tuaj yeem nce ntxiv thaum ua kom muaj kev ua raws li lub teb chaws cov qauv kom txo cov nqi, feem ntau tswj tau nyob rau hauv qhov ntau ntawm 6: 1 txog 10: 1.
Puas yog qhov sib piv loj ntawm cov yas rau cov khoom siv roj hmab ruaj khov?
Nov 21, 2024
Xa kev nug
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