形容词
中文翻译：非生产性的
同义词：
['unproductive', 'ineffective', 'unfruitful', 'unprofitable']
例句：
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1.The company's decision to invest in new technology was non-productive.
公司决定投资新技术的决定是无效的。
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2.The research project was non-productive due to lack of funding.
由于缺乏资金，这个研究项目是无效的。
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3.The manager's suggestion for a change in the work process was considered non-productive by the team.
经理提出的改变工作流程的建议被团队认为是无效的。