Chinese edit

time and again
 
to test; to try; experiment
to test; to try; experiment; examination; test
not; no
 
invigorating; straightforward; frank
invigorating; straightforward; frank; open; bright; clear
trad. (屢試不爽)
simp. (屡试不爽)

Pronunciation edit


Idiom edit

屢試不爽

  1. to prove effective every time