百试不爽
同为：屡试不爽
屡试不爽的中文解释
【解释】：屡次试验都没有差错。爽：差错的意思。易误解为“没有成功”。
【出自】：清·蒲松龄《聊斋志异·冷生》：“言未已，驴已蹶然伏道上，屡试不爽。”
屡试不爽的英文翻译1. to have proved effective every time; to have stood numerous tests; to prove successful in every test
2. As often as it is used, it proves accurate.