单词 perennibranch 释义 perennibranch, a. and n. Zool.|prnbrk|[f. mod.L. Perennibranchia neut. pl., f. perennis perennial + branchia.]a. adj. Having permanent gills; belonging to the division Perennibranchia (or Perennibranchiata) of Amphibians, which re...