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单词 touchstone
释义

WordReference Random House Learner's Dictionary of American English © 2024
touch•stone /ˈtʌtʃˌstoʊn/USA pronunciation   n. [countable]
  1. a standard or criterion for testing the qualities of a thing.

WordReference Random House Unabridged Dictionary of American English © 2024
touch•stone  (tuch′stōn′),USA pronunciation n. 
  1. a test or criterion for the qualities of a thing.
  2. a black siliceous stone formerly used to test the purity of gold and silver by the color of the streak produced on it by rubbing it with either metal.
  • touch + stone 1475–85
    • 1.See corresponding entry in Unabridged standard, measure, model, pattern.

Collins Concise English Dictionary © HarperCollins Publishers::
touchstone /ˈtʌtʃˌstəʊn/ n
  1. a criterion or standard by which judgment is made
  2. a hard dark siliceous stone, such as basalt or jasper, that is used to test the quality of gold and silver from the colour of the streak they produce on it
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更新时间：2025/11/11 4:29:04