1794Statist. Acc. Scot. XI. 93 They are..called sightmen, because..they become wonderfully quick-sighted in discerning the motion and approach of..salmon.
英语词典包含277258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。