ReadWriteQuiz
Chinese dictionary
slput to repeated tests and proved right; effective every time it is used; be proved effective every time it is used
新杀虫剂效果良好,屡试不爽。
This new insecticide has been proved effective every time used.
屡试不爽的方法
time-tested method
这个笑话屡试不爽。
This joke never fails.
synonym