Peb lub tuam txhab tau tshaj tawm cov thev naus laus zis hauv tsev thiab txawv teb chaws, thiab tau tsim kho tshiab tas li.Tau ntau xyoo, peb tau muab kev tshaj lij kev xa khoom thiab kev daws teeb meem rau cov neeg siv khoom hauv ntau tshaj 30 lub teb chaws thiab cheeb tsam hauv Suav teb thiab thoob plaws ntiaj teb.