近义词：
屡试屡验
反义词：
屡战屡败
词语解释
屡试不爽[ lǚ shì bù shuǎng ]
⒈ 每次使用都有效；多次试验都不错。
例这种新农药效果良好，屡试不爽。
英be found officious as often as it is tried; be often tried and often succeeded; effective every time it is used;
国语辞典
屡试不爽[ lǚ shì bù shuǎng ]
⒈ 屡次试验，结果都相同。
例如：「这个方法十分有效，屡试不爽。」