KHOOM ZOO TSHAJ PLAWS
Ntse Weigh tau tsim 4 lub tshuab tseem ceeb, lawv yog: hnyav, ntim tshuab, ntim tshuab thiab tshuaj xyuas tshuab. Txhua pawg tshuab muaj ntau yam kev faib tawm, tshwj xeeb tshaj yog hnyav. Peb zoo siab los qhia koj lub tshuab zoo nyob ntawm koj qhov project xav tau.