Engen (延元) was a Japanese era of the Southern Court during the Era of Northern and Southern Courts after Kemmu and before Kōkoku, lasting from February 1336 to April 1340.Nussbaum, Louis-Frédéric.
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。