Raws li cov khoom siv thev naus laus zis tshiab, bar LCD npo sawv tawm hauv kev tshaj tawm cov ntaub ntawv nrog nws qhov tshwj xeeb nam piv thiab siab txhais. Nws yog dav siv nyob rau hauv pej xeem qhov chaw xws li tsheb npav, khw malls, subways, thiab lwm yam., muab kev hloov tshiab ntawm lub sijhawm thiab qhov muag pom ...
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