ac·id test
noun/ˌæsɪd ˈtest/
/ˌæsɪd ˈtest/
(also litmus test)
[singular]- a way of deciding whether something is successful or true
决定性考验；严峻的考验 - The acid test of a good driver is whether they remain calm in an emergency.
对一个好司机的严峻考验就是在紧急情况下能否保持冷静。 - The perception of fairness is the acid test for democracy.
对公平的看法是对民主的严峻考验。 - This type of stone is the acid test of a climber’s ability.
这种石头是对登山者能力的严峻考验。
Word Originfiguratively, from the original use which was a test for gold using nitric acid. - The acid test of a good driver is whether they remain calm in an emergency.