OEM txhua yam
Muab tag nrho cov khoom siv pom kev tsim
Ua si yees duab
Zoo meej kev pab cuam tom qab muag
Bison cov kev pabcuam hauv zos tau them 60% ntawm lub tebchaws hauv ntiaj teb.
Txhua qhov kev txiav txim yuav xa cov khoom siv pub dawb rau kev saib xyuas tau zoo
12-hli lub sijhawm lav rau cov neeg siv khoom zoo tib yam, 18-hli lub sijhawm lav rau peb cov neeg ua haujlwm.
