Ib chav kawm me me ntawm kev tsim cov vase yooj yim rau sab hauv nrog lawv tus kheej txhais tes.
Cov ntawv qhia txog kauj ruam ib theem ntawm cov theem tseem ceeb ntawm kev ua haujlwm.
Ib chav kawm me me ntawm kev tsim cov vase yooj yim rau sab hauv nrog lawv tus kheej txhais tes.
Cov ntawv qhia txog kauj ruam ib theem ntawm cov theem tseem ceeb ntawm kev ua haujlwm.