Qhia rau txhua tus neeg siv khoom tias lub Hoobkas tau nkag mus rau lub caij tsis khoom.Pib ua haujlwm dhau sijhawm ntawm cov neeg siv khoom xaj.Yog tias koj xav tau kev yuav khoom, thov nco ntsoov tso qhov kev txiav txim ua ntej.Lub sijhawm xa khoom tau txuas ntxiv mus rau 20 hnub ua haujlwm.