Tsev so Mus Yuav Cov Ntawv Pav Tsev lossis Cov Ntawv Xa Khoom
May 30, 2022
Cov nplooj ntawv thiab cov ntawv haum yog qhov tseem ceeb tib yam, lawv nyob rau hauv kev sib cuag nrog tib neeg, cov ntaub yog tib yam, qhov sib txawv tsuas yog tias plaub fab ntawm cov ntawv haum yog elastic dua.
Cov tsev so feem ntau siv cov ntaub pua tsev, yog li kev tu yog feem ntau paub txog cov ntaub pua tsev.
Feem ntau, tus nqi ua ntawm cov ntawv haum yog ntau dua li ntawm cov ntaub ntawv txaj, thiab tus nqi kuj tseem siab.
Cov ntaub ntawv tiaj tus quav zoo dua thiab khaws cia zoo dua
