英语词汇unproductivity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	unproductivity
释义	unproductive adjective— 徒劳无功 adj
随便看	steam pipe steam piping steam plant steam plume steam pot steam power plant steam power plants steam preheater steam preparation steam pressure steam production steam railway steam reactor steam reducing steam reduction steam reforming steam reforming natural gas steam regenerated steam release steam requirement steam resistant steam rice steam room steams steam safety valve

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。

unproductive adjective—