您要查找的是不是：
- 徒劳 futile
- 无力的 languid
- 徒劳的 infructuous
- 无力地 feebly
- 无力偿还 insolvency
- 重症肌无力 myasthenia gravis
- 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.
- 全身无力 general weakness
- 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.
- 该国无力抵抗侵略。 The nation was unable to resist the invasion.
- 无力感 dilutedness
- 没有土壤，播种也是徒劳。 It is lost labour to sow where there is no soil.
- 他的演说无力。 His speech lacked punch.
- 使某人徒劳 nullify one's efforts
- 四肢无力 weakness of limbs
- 我们的努力全是徒劳。 Our efforts were in vain.
- 浑身无力 weak all over
- 反对这些规定是徒劳的。 It's no use kicking against the rules.
- 肌无力 myasthenia
