Muaj peev xwm xaiv ib xim lossis ob chav xim elastic
6 xim hauv 1 kab, tag nrho 13 xim hauv ib lub thom khwm
Xaiv terry rau thom khwm ntiv taw thiab thom khwm pob taws
Yuav ua tau txhua yam ntawm cov thom khwm terry