1.
To affect so strongly as to make helpless or ineffective;overwhelm.
压倒，使无法忍受影响如此之大以至于使无助或无效力；压倒
2.
Too often used or too well known to be effective;hackneyed.
因经常使用或尽人皆知而无效力的；陈腐的。
3.
Something that is null, especially an act having no legal validity.
无效无效的东西，尤指无法律效力的法案
4.
Lacking strength or power; helpless and totally ineffectual.
无力的无力的或无能为力的；无助的或完全无效的
5.
I regret that I cannot be of service to you.
我很遗憾无力为你效劳。
6.
To cancel or to stop something have any legal effect.
使其无任何法律效力。
7.
take away the legal force of or render ineffective; invalidateas a contract.
取消法定力量或使变得无效；合同变得无效。
8.
To deprive of capability or effectiveness, especially to impair the physical abilities of.
使无能力使丧失能力或使无效，尤指损害身体能力的
9.
On the Legal Validity of NVOOC Marine Carriage Contract;
论无资格无船承运人海运合同的法律效力
10.
When persuasion failed they used force.
劝说无效时,他们就使用武力了。
11.
All our efforts to save her did not avail anything.
我们为救她所作一切努力都无效。
12.
The pastor tried hard,but unsuccessfully,to keep the boys to the straight and narrow path.
牧师竭力使男孩们循规蹈矩可是无效。
13.
Research on Shear Lag Effect for Straight Box Girder Jointless Bridges;
无伸缩缝直线箱梁桥剪力滞效应研究
14.
Research on Shear-lag Effect for Curved Box Girder Jointless Bridges;
无伸缩缝曲线箱梁桥剪力滞效应研究
15.
The Definition of Non-Entitlement Disposition and Effect Evaluation;
探究无权处分的概念界定与效力评判
16.
Effects of Variety in Pressure on Shoot Squeeze Molding
射砂压力对无箱射压造型效果的影响
17.
The state or quality of being incapable of producing a desired effect or result.
无效果无能力产生预期效果或结果的状态或性质
18.
a futile effort; the therapy was ineffectual; an otiose undertaking; an unavailing attempt.
无用的努力；这个治疗方法没有效果；无用的承诺；无用的尝试。