Lub qhov rooj hluav taws yog hais txog lub qhov rooj uas tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm kev tiv thaiv hluav taws, kev ncaj ncees thiab kev rwb thaiv tsev kub hauv ib lub sijhawm. Lub qhov rooj hluav taws yog nyob rau hauv qhov hluav taws kub faib, khiav tawm stairwell, ntsug ncej thiab lwm yam hluav taws faib nrog ib tug tej yam hluav taws tsis kam.

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