听听怎么读 英[əʊ'bi:ljə] 美[oʊ'biljə] 是什么意思 n. 薮枝螅; 英英释义 Obelia Obelia is a genus in the class Hydrozoa, which consists of mainly marine and some freshwater animal species and have both the polyp and medusa stages in their life cycle. The genus belongs to ...