peb yog cov chaw tsim khoom ntawm chaw nres tsheb cua sov thiab cua sov qhov chaw rau 30 xyoo, nyob rau hauv Suav teb, peb muab peb cov khoom rau Suav tub rog tsheb.Nws tuaj yeem sawv cev rau qhov zoo tshaj plaws nyob rau hauv Suav teb, ntxiv rau peb yog tib lub chaw nres tsheb tso cua sov rau Suav tub rog tsheb.