phylum
n. 门(分类);语系
复数 phyla
例句
A phylum of Eubacteria contains the true actinobacteria and the coryneform bacteria.
一门真细菌包含真放线菌以及棒状杆菌。
Jellyfish are free-swimming members of the phylum Cnidaria.
水母是腔肠动物部的成员。
Some palaeontologists think them members of a phylum that is now extinct.
有的古生物学家认为它们属于已经绝迹的一门动物。