您要查找的是不是：
- 徒劳futile
- 徒劳的infructuous
- 结果证明这只不过是一场徒劳。It turned out to be a wild-goose chase.
- 演讲和抗议全都徒劳。Speeches and protests were of no avail.
- 我一直要基思整理自己的房间，但看来我这样做是徒劳的。I keep trying to get Keith to tidy his room but I'm fighting a losing battle.
- 没有土壤，播种也是徒劳。It is lost labour to sow where there is no soil.
- 使某人徒劳nullify one's efforts
- 我们的努力全是徒劳。Our efforts were in vain.
- 反对这些规定是徒劳的。It's no use kicking against the rules.
- 徒劳的努力ineffectual efforts
- 徒劳地fruitlessly
- 想要得不到的事物是徒劳的。It's no use wishing for things you can't have.
- 无用的，徒劳的Having no useful result.
- 试图说服他所作的努力是徒劳的。Efforts to convince him were futile.
- 他们的一切努力似乎是徒劳的。All their efforts seemed helpless.
- 徒劳感a sense of futility
- 放弃徒劳的尝试Fling up vain attempt
- 徒劳；a futile effort;
- 我们设法想要弄清楚发生了什么事,但却徒劳。We tried vainly to discover what had happened.
- 日复一日, 她徒劳地等待他的电话.Day after day she waited in vain for him to telephone her.
