a reference book that is published regularly once every year
同义词：annual??/??yearbook
occurring or payable every year
同义词：annual
without missing a year
同义词：annually??/??every year??/??each year
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。