Tej zaum koj yog tus thawj coj dub thiab dawb yuav khoom zoo ultrasound dub thiab dawb , thiab cov khoom siv uas tuaj yeem ua tau raws li koj cov kev xav tau. Tsis tsuas yog ultrasound dub thiab dawb peb ua tau muaj pov thawj rau cov qauv kev lag luam thoob ntiaj teb, tab sis peb kuj tuaj yeem ua tau raws li koj cov kev xav tau kev hloov kho. Peb muab online, kev pabcuam raws sij hawm thiab koj tuaj yeem tau txais cov lus qhia kev tshaj lij ntawm ultrasound dub thiab dawb . Tsis txhob yig tau sib cuag nrog peb yog tias koj xav paub txog ultrasound dub thiab dawb , peb yuav tsis tso koj tseg.