unproductive是什么意思

实用例句

1. I've had a very unproductive day.

我这一天什么事都没干成。

来自《权威词典》

2. 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。

来自辞典例句

3. One man's mystical haven for wealth is another's unproductive barbarous relic.

一个人的神秘的财富庇护所则是另一个人的不毛的荒凉废墟.

来自辞典例句

4. One - quarter of the country is reckoned as unproductive.

这个国家有四分之一被认为是不毛之地.

来自辞典例句

5. The letter was not unproductive.

信没有白写.

来自辞典例句