单词	touchstone
释义	touchstonetouch‧stone /ˈtʌtʃstəʊn $ -stoʊn/ noun [countable] Word Origin WORD ORIGINtouchstone Origin: 1500-1600 touchstone ‘stone used for testing the quality of gold and silver’ (16-21 centuries) Examples EXAMPLES FROM THE CORPUS At its core would be using inflation-adjusted interest rates on short-term credit as its touchstone in setting policy. I have believed that since my earliest days, and I have used it as a touchstone in all my leadership endeavors. I knew one little poem by her, when I was very small, and it became a kind of touchstone. It is a touchstone for legal definitions and rulings. Tested against the touchstone of Scripture, his speculations would reduce the Bible to the size of a slim paperback. The touchstone of the relationship is commercial. They tend to regard grammar as the touchstone of all language performance. We had to rethink the issues and create new touchstones... something used as a test or standardtouchstone of Pupil behaviour was seen as ‘the touchstone of quality’ of the school system.
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