unfruitful

基本解释

• adj.无效果的；徒然的；空的

同根派生

英汉例句

用作形容词 (adj.)

• After a period of unfruitful time waiting for a kidney, the poor girl died.
  该女生在医院里等待肾脏捐赠无果后死亡。
• They have been unfruitful in their efforts.
  他们都徒劳而归。
• This kind of video does not have commercial value, unfruitful raise bandwidth cost.
  这类视频没有商业价值，又徒然增加带宽成本。