xǔduō / niǎo jiǎo yà mù / kǒnglóng / yǐ / zhíwù / wéi shí / bìngqiě / nénggòu / yòng / shuāngzú / kuàisù / bēnpǎo许多鸟脚亚目恐龙以植物为食,并且能够用双足快速奔跑。Many ornithopod dinosaurs ate plants and were able to run quickly on two legs.