英语词汇unproductiveness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	unproductiveness
释义	□ unproductiveness n. ‣Main Entry: unproductive
随便看	immodestly immodesty immolate immolation immolator immoral immorality immorally immortal immortality immortalization immortalize immortally immortelle immovability immovable immovable feast immovably immune immune response immunity immunization immunize immunizer immuno-

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