以世代交替为特色的腔肠动物；通常群居的水螅阶段先于水母阶段；水螅和水母。

以世代交替为特色的腔肠动物；通常群居的水螅阶段先于水母阶段；水螅和水母。的英文翻译

基本释义

• coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes.