10mx36m Oval Qhov Tsev Cog Khoom

peb yog cov kws tshaj lij tsim khoom thiab tsim lub tsev cog khoom tsev cog khoom, qhov no 10x36m qhov tsev cog khoom yog qhov muag kub hauv ntiaj teb kev lag luam.Qhov tsev cog khoom thav duab tuaj yeem xaiv puag ncig lossis oval, ob sab qhov cua tshuab, nws tseem siv rau cog cog