Van den Yug: "Ua ntej saib tus nqi ntxiv thiab tom qab ntawd ntawm qhov tseeb engineering."
"Koj yuav tsum paub tias koj xav tau dab tsi los txhim kho thiab saib xyuas qhov twg koj lub tuam txhab muaj peev xwm. Thaum twg...
"Koj yuav tsum paub tias koj xav tau dab tsi los txhim kho thiab saib xyuas qhov twg koj lub tuam txhab muaj peev xwm. Thaum twg...