鸟脚亚目 niǎojiǎoyàmù Ornithopoda Origin Definitions Defs Strokes Stroke Words Sentences Sents 鸟 鳥 niǎo noun bird bird; feathered vertebrate with wings and a beak脚 腳 jiǎo noun foot foot or leg of a person or animal亚目 亞目 yàmù suborder (biology) suborder; a taxonomic rank below an order and above a family