用“pennaceous”造句大全,pennaceous造句 國語站 造句 2.15W 大中小設定文字大小 Xu calls it a "four-winged" dinosaur because it had long, pennaceous feathers on its arms and legs.Eventually, dense rows of interlocking barbs formed a flat surface: the basic blueprint of the so-called pennaceous feathers of modern birds. TAG標籤:pennaceous 造句 #