1Psychology a revolving device on which items to be learned are successively presented; also in extended use.
2A drum-shaped memory device in a computer.
1930s; earliest use found in Journal of Higher Education.
英汉双解词典包含464360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。