ืืืฆืจ ืืืืื ืืงืืื ืืขืจืืืช: ืืื ืืื ืฉื ืืื ืืืจืกืืื, ืกืคืจืืช, ืืืงืจ, ืืชืขืืืืช. ืืืืื ืฉื ืืื ืืื ืืืงืฉืจ ืืงืืื.
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