Peb yog cov kws tshaj lij rau cov kev pabcuam ib-chaw nres tsheb, Feem ntau lossis peb cov neeg siv khoom yog cov neeg xa khoom ua liaj ua teb, peb muaj ntau tshaj 300 tus neeg siv khoom thoob ntiaj teb. Peb tuaj yeem muab cov khoom tu, ntu ntim, ntu thauj thiab pp hnab rau ib qho chaw yuav khoom. Txhawm rau txuag peb cov neeg siv khoom lub zog thiab tus nqi