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BNC: 14719 COCA: 17328

unproductive

un·pro·duct·ive /ˌʌnprəˈdʌktɪv◂/ adjectiveadj  
FAILnot achieving very much 无结果的,徒劳的
 an unproductive meeting
没有成果的会议
Examples from the Corpus
un·pro·duct·ive adjectiveadj
Chinese
Syllable
Corpus
BNC: 14719 COCA: 17328
BNC: 14719 COCA: 17328
unproductive adj.
ineffective
BNC: 14719 COCA: 17328
unproductive
Unsuccessful: failed, abortive, fruitless...
Crop farming: arable, broadacre, cash crop...
Soil fertility and fertilization: compost, compost, desertification...

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