- producing no useful results没有成果的；无成效的；徒然的 synonym unproductive
- a fruitless attempt/search徒然的尝试／搜查
- Our efforts to persuade her proved fruitless.我们努力说服她，但毫无成效。🔊🔊
opposite fruitfulExtra Examples- All the signs were that this was going to be a fruitless exercise.所有迹象表明，这将是徒劳的。
- He abandoned his fruitless attempts to get his poems published.他放弃了徒劳无益的尝试来发表自己的诗歌。
- He returned home after weeks of fruitless negotiations.他在进行了数星期毫无成果的谈判后回家了。
- They were three weeks into an apparently fruitless investigation.他们花了三个星期的时间进行了毫无结果的调查。
Oxford Collocations Dictionaryverbsadverb- completely
- utterly
- largely
- …
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