| 单词 | touchstone |
| 释义 | touch·stoneBrE /ˈtʌtʃstəʊn/ NAmE /ˈtʌtʃstoʊn/ noun [usually sing. ]~ (of /for sth )(formal ) something that provides a standard against which other things are compared and /or judged 试金石；检验标准◆ the touchstone for quality 检验质量的标准 |
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