unproductive什么意思解释？

I've had a very unproductive day.我这一天什么事都没干成。Research workers are well aware that much of their time and effort is unproductive.研究人员很清楚，他们的很多时间和精力全都是白费。...increasingly unproductive land.越来越贫瘠的土地One quarter of the co...

I've had a very unproductive day.我这一天什么事都没干成。One quarter of the country is reckoned as unproductive.该国四分之一的土地被认为是不毛之地.To prospect for ( oil, for example ) in an area supposed to be unproductive.盲目开掘在认为资源不足的地区盲目找 ( 如...

unproductive的反义词有：productive, productive。adj.unproductive的反义词（无生产的;无收益的）：productive。unproductive的反义词（其他释义）：productive。...

unproductive的音标：unproductive的英式发音音标为：[ˌʌnprə'dʌktɪv]unproductive的美式发音音标为：[ˌʌnprə'dʌktɪv]...

huff的音标：huff的英式发音音标为：[hʌf]huff的美式发音音标为：[hʌf]...

穆拉特毫不退缩地直视着执行枪决的行刑队员们的眼睛。Murat had looked into the eyes of the firing squad without flinching.“国有企业经营不善将是常态，”约翰·穆尔告诉读者。"State-owned industries will always perform poorly," John Moore informed readers.鲁珀特·穆恩扭伤了膝盖，无法参加今天的训...

“间或”的拼音为：jiàn huò...

kink的一般过去时为：kinked...

n.精神病专家，精神病医生( psychiatrist的名词复数 )...

慢食癖...

n.持续型间日症...

n.将军，大官，宗教领袖...

imperially的音标：imperially的英式发音音标为：[ɪm'pɪərɪəlɪ]imperially的美式发音音标为：[ɪm'pɪərɪrlɪ]...

anthem的复数形式为：anthems...

夜以继日地， 日夜，不舍昼夜，日日夜夜，白天黑夜...

“溺”的拼音为：nì...

eliminable的音标：eliminable的英式发音音标为：[ɪ'lɪmɪnəbl]eliminable的美式发音音标为：[ɪ'lɪmɪnəbl]...

Cramer spat an obscenity.克拉默愤愤地骂了一句脏话。The editors are being prosecuted for obscenity.编辑因刊载污秽文字而被起诉。The meanness of anonymity gave a shuddering obscenity to the moment.这种匿名的卑鄙行为使他一时觉得下流得让人吃不消....

adj.热的，辣的，激动的，热门的vt.使兴奋，使激动adv.热的，紧迫的vi.变热...