late 14c., "barren," from un- (1) "not" + fruitful. Originally literal; figurative sense is attested from c. 1400. Related: Unfruitfully; unfruitfulness.
实用例句
1. Frequent shots told Ferqusson that his search was not unfruitful.
频频的枪声告诉费尔久逊:打猎是顺利的.来自辞典例句
2. They have been unfruitful in their efforts.
他们都徒劳而归.来自互联网
3. For if I pray in an unknown tongue , my spirit prayer, but my understanding is unfruitful.
我若用方言祷告 、 是我的灵祷告但我的悟性没有果效.来自互联网
4. For if I pray a tongue, my spirit prays, but my mind is unfruitful.
因为我若用方言祷告, 我的灵就祷告, 我的心思却没有作用.来自互联网
5. For if I pray in a tongue, my spirit prays, but my mind is unfruitful.
