noun 下载 🔗分享 亚门,亚门类。 A taxonomic category below phylum and above class Examples : "In biology class, we learned that vertebrates, like humans and birds, are classified in the subphylum Vertebrata, which is a group smaller than the phylum Chordata but larger than the class Mammalia (for humans) or Aves (for birds). " 在生物课上,我们学到像人类和鸟类这样的脊椎动物,被归类在亚门脊椎动物亚门里,这个亚门比脊索动物门小,但是比哺乳纲(人类所属的纲)或者鸟纲(鸟类所属的纲)大。 biology organism science nature animal plant 与AI对话词汇游戏阅读练习