Precision ua, tsuas yog rau siab zoo
Los ntawm kev tshawb fawb thiab kev tsim kho tshiab, peb pab cov neeg siv khoom los ntawm txhua qhov chaw ntawm lub neej kho kom haum cov khoom siv hloov pauv ntau dua, thiab tsim cov chaw txaus ntshai rau hauv kev nyab xeeb fortresses.