Qhov txawv ntawm lub thawv xauv thiab lub thawv PO yog feem ntau ntawm lawv lub hom phiaj thiab kev siv:
Xauv Box:
Lub thawv xauv feem ntau yog lub thawv ntim khoom ruaj ntseg uas tuaj yeem siv los khaws cov khoom muaj nqis lossis cov ntaub ntawv tseem ceeb. Nws feem ntau yog siv rau kev lag luam vaj tsev lossis los ntawm cov lag luam kom ruaj ntseg tuav cov khoom xws li cov yuam sij lossis cov ntawv cog lus.
Cov thawv xauv tuaj yeem yog cov khoom siv lub cev uas xav tau tus yuam sij lossis kev sib xyaw kom qhib.
PO Box (Post Office Box):
Lub thawv PO yog lub thawv xa ntawv xauj tsev nyob ntawm lub chaw xa ntawv, siv rau kev xa ntawv. Nws muab qhov chaw ruaj ntseg rau cov tib neeg lossis cov lag luam kom tau txais kev sau ntawv tsis tas siv qhov chaw nyob.
Lub thawv PO feem ntau yog siv los ntawm cov neeg xav tau kev ceev ntiag tug, tsis muaj chaw nyob ruaj khov, lossis xav tau txoj hauv kev zoo kom tau txais ntawv xa tuaj.
