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单词 acid test
释义 acid test
noun
Etymology: so called from the use of nitric acid to determine the gold content of jewelry
: a severe or crucial test (as of value, authenticity, or effectiveness)
 < the acid test of our … good faith — A.H.Vandenberg >
 < rationally testing our hypothesis by the acid test of seeing how it works — Gardner Murphy >
 < reading papers is the acid test of the teacher — English Journal >
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更新时间:2024/12/24 1:40:59