to no avail
[tu: nəu əˈveil]

adv.

完全无用；徒然；奈何；无效

双语例句

1. His intervention was of no avail.
   他的调停无效。
2. His claim to ownership is invalid.
   他的所有权是无效的。
3. This is a subject into which many scientists have researched with no result.
   这是一个虽经很多科学家研究过但尚无结果的课题。
4. Seven patients had abnormal urinalysis but no positive finding in culture.
   七位病人之尿液常规检查显示白血球增多但培养无结果。

权威例句

To No Avail
Tissue microarray based analysis of prognostic markers in invasive bladder cancer: much effort to no avail?
Plant defences to no avail? Responses of plants of varying edibility to food web manipulations in a low arctic scrubland.
Is Transparency To No Avail?
CETP inhibitors boost 'good' cholesterol to no avail
Travail to No Avail? Working Poverty in Australia Since 2000
Travail to No Avail? Working Poverty in Australia
Travail to no avail? Working poverty in Australia since 2000
Travail to No Avail? Working Poverty in Australia
To No Avail: A Critical Look at the Charter School Debate.