| 释义 |
to no avail tu:nəuəˈveil 短语²²⁰³⁰
基本例句
无效; 无结果
His intervention was of no avail.他的调停无效。
His claim to ownership is invalid.他的所有权是无效的。
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。
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。 |