| 单词 | subclass Opisthobranchia |
| 释义 | subclass Opisthobranchia (extremely rare) n WORD FAMILY subclass Opisthobranchia n gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares Syn|Hyper Opisthobranchia class (biology) a taxonomic group containing one or more orders |
| 随便看 |
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。