unproductive
01
无成效的, 无效的
ineffective in producing positive or meaningful outcomes
例子
The unproductive meeting wasted everyone's time and did n't generate any new ideas.
这次无成效的会议浪费了大家的时间，没有产生任何新想法。
Her procrastination made her workday unproductive, as she did n't complete any tasks.
她的拖延使她的工作日没有成效，因为她没有完成任何任务。
例子
The farmers struggled with unproductive land that barely supported crops.
农民们与贫瘠的土地作斗争，这些土地几乎无法支撑作物。
Efforts to cultivate the unproductive soil failed due to poor nutrients.
由于养分贫乏，耕种不毛土地的努力失败了。
03
非能产的, 无构词能力的
not capable of generating new word forms or constructions
例子
The suffix " -th " is now largely unproductive in English, with very few new words being formed with it.
后缀"-th"现在在英语中很大程度上是非生产性的，用它形成的新词很少。
In modern English, the use of certain prefixes like " be- " has become unproductive, meaning new words rarely use it.
在现代英语中，使用某些前缀如“be-”已经变得非生产性，这意味着新词很少使用它。
词汇树
unproductive
productive
product
