1. 形容詞
   無效果的, 徒然的
   不生育的
   不結果實的, 收益不多的
   

   同義字詞
   barren,fruitless,impotent,infertile,sterile
   

例句

1. So the sense training remains unfruitful .
2. However most attempts have been unfruitful .
3. Darkness produces only dead, unfruitful works.
4. Also , following a trend could prove unfruitful .
5. The ideas were discussed, but proved unfruitful .
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