英语词汇has been ineffective怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	has been ineffective
释义	be ineffective— 不灵 ineffective — 低效 has-been — 过气
随便看	secondary packing secondary particle secondary partitions secondary peak secondary penalty secondary performance secondary phase secondary placement secondary plant secondary plot secondary ports secondary position secondary power supply secondary-power-system secondary pressure secondary priority secondary" problems secondary problems secondary" problems Secondary procedure secondary proceedings secondary process secondary processing secondary production secondary professional education

英汉双解词典包含2273206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。

be ineffective—