One of four species of South American aquatic constrictor snakes of the genus Eunectes (family Boidae), especially the green anaconda (E. murinus), which is the world’s heaviest snake and one of the longest, reaching 5 m or more when adult.
Mike Allaby
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。