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Kev tiv thaiv ib puag ncig yog ib feem tseem ceeb ntawm tag nrho cov txiaj ntsig ntawm noob neej
Nrog rau kev txhim kho tas mus li, kev vam meej thiab kev loj hlob ntawm tib neeg, kev ua qias tuaj ib puag ncig tau dhau los ua qhov hnyav dua, thiab teeb meem ecological ib puag ncig tau ua rau muaj kev txaus siab thoob plaws ntiaj teb ...Nyeem ntxiv
