ineffectual meaning in English
adj.
无效的，不灵验的，徒劳无益的。
adv.
-ly ,-ness n.
Examples
- All rescue measures proved ineffectual .
抢救无效。 - The sun sank down, and in the sky floated a thin, ineffectual moon .
夕阳已经西斜，天空升起一轮淡淡的明月。 - She had felt at the same time that he was helpless and ineffectual .
同时她也看到了他的孤弱无能，无所作为。 - The years of ineffectual service count big in the bestowal of rewards .
几年徒劳无益的服务，在论功行赏时就大有关系。 - The principal finding aid they offer users--the card catalogue--is largely ineffectual .
他们提供给读者的主要查找途径--卡片目录--大部分已经失效。