Thaum lub sijhawm tsim kho, cov neeg ua haujlwm pabcuam nruj tswj hwm qhov kev teeb tsa zoo, ua tib zoo saib xyuas cov ntsiab lus ntawm kev tsim kho, kov yeej cov teeb meem, ua kom txhua yam khoom xa tuaj raws sijhawm, thiab muab cov lus teb txaus siab rau cov neeg siv khoom, xyaum "custo ...
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