单词	principal diagonal
释义	principal diagonal noun : the diagonal in a square matrix that runs from upper left to lower right Word History First Known Use 1962, in the meaning defined above
随便看	tonneau tonneau cover tonneau lamp tonneau windshield tonneaued tonneaus tonneaux tonner tonners tonnes Tonnidae tonnish tono tono- tonogram tonograph tonographic tonography tonological tonology tonometer tonometers tonometries tonometry tonoplast

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。