Ib tsab xov xwm nthuav dav hauv cov khoom noj txom ncauj txog kev txwv txiav yas 2021 yav tom ntej thiab dab tsi yuav poob rau hauv tam sim no:
Ib tsab xov xwm nthuav dav hauv cov khoom noj txom ncauj txog kev txwv txiav yas 2021 yav tom ntej thiab dab tsi yuav poob rau hauv tam sim no: