单词	river shark
释义	river shark noun : a shark (such as the bull shark or Ganges shark) that frequents freshwater and especially rivers Word History First Known Use 1810, in the meaning defined above
随便看	arcseconds arcsin arcsine arcsines arct- Arctalian Arctamerican arctan arctangent arctangents arctia arctic arctic air Arctic Archipelago arctic birch arctic bluebell arctic chamomile arctic char arctic circle Arctic dog disease arctic fox arctic front arctic grass arctic grayling Arctic ground squirrel

英语词典包含469781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。