a back number
1 an issue of a periodical before the current one.
2 a person whose ideas or methods are out of date and who is no longer relevant or useful.
英语词组固定搭配大全包含15956条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。