Qee zaum peb tau tham txog dej tso pob zebCov. Tab sis dab tsi peb tawm hnub no yog kev ua haujlwm ntawm aeronautical engineering.
Nws yog ob qhov dej ua haujlwm muaj pob zeb, uas nce mus txog 250 meters hauv qhov siab; amazing.
Tus duab ntawm lub foob pob zeb kom koj tau txais ib lub tswv yim ntawm qhov peb tau tham txog.
Yog; lawv yog cov dej fwj :)