aquatic North American salamander with red feathery external gills
同义词：Necturus maculosus
large salamander of North American rivers and streams
同义词：hellbender??/??Cryptobranchus alleganiensis
larval salamander of mountain lakes of Mexico that usually lives without metamorphosing
同义词：axolotl??/??Ambystoma mexicanum
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。