屡试不爽

【意思解释】词语解释 lǚ shì bù shuǎng ㄌㄩˇ ㄕㄧˋ ㄅㄨˋ ㄕㄨㄤˇ 屡试不爽 ◎ 屡试不爽 lǚshì-bùshuǎng[be found officious as often as it is tried;be often tried and often succeeded;effective every time it is used] 每次使用都有效;多次试验都不错 这种新农药效果良好,屡试不爽