unproductive什么意思解释？

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。...

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

The ostensible glory of that company allures the unwary investor.那家公司表面上的兴隆吸引了那个心存侥幸的投资者。Hawaii allures many tourists.夏威夷吸引了许多旅游者.Not evil, but goodness more often allures the feeling mind unused to reason.往往不是恶, 而是善,迷惑那...

sea的反义词有：land, air, land。n.sea的反义词（海,海洋）：land, air。sea的反义词（其他释义）：land。...

“独自”的近义词/同义词：单独, 孤单, 只身。...

“双壳纲”的英语可以翻译为：Bivalvia ...

riled的音标：...

contrast的现在完成时为：contrasted...

powerless的近义词/同义词有：helpless, weak, defenseless, prostrate, feeble, ineffectual。adj.powerless的近义词（无力的;无权势的）：helpless, weak, defenseless。powerless的近义词（其他释义）：prostrate, feeble, ineffectual。...

It was exhausting work moving the heavy buckets, decanting the liquids.搬动沉重的桶, 滗出液体,这些都是使人精疲力竭的工作....

“乳脂状”的英语可以翻译为：creaminess ...

“蒸汽”的英语可以翻译为：vapour，reek，breath，steam ...

Normal life is at a standstill, and the economy is faltering.正常生活陷于瘫痪，经济止步不前。Abruptly the group ahead of us came to a standstill.我们前面的小组突然停了下来。The security alert brought the airport to a standstill .安全警戒使机场陷入停顿状态。...

fingermark的音标：fingermark的英式发音音标为：['fɪŋgəmɑ:k]fingermark的美式发音音标为：['fɪŋgərmɑrk]...

chemasthenia的音标：chemasthenia的英式发音音标为：[keməs'θi:nɪə]chemasthenia的美式发音音标为：[keməs'θinɪr]...

“平方”的拼音为：píng fāng...

bracketing的音标：bracketing的英式发音音标为：['brækɪtɪŋ]bracketing的美式发音音标为：['brækətɪŋ]...