unfruitful
语法信息
形态构成
复合词
性质形容词
最高级
most unfruitful
比较级
more unfruitful
可分级
例子
Despite numerous attempts, their unfruitful efforts to find a solution left them feeling frustrated and discouraged.
尽管多次尝试，他们为寻找解决方案所做的徒劳努力让他们感到沮丧和灰心。
词汇树
unfruitful
fruitful
fruit
