N-COUNT If you use one thing as a touchstone of another, you use it as a test or standard by which you judge the second thing. 试金石; 标准 [usu N 'of/for' n]
Job security has become the touchstone of a good job for many employees.
对许多雇员来说，工作的稳定性已经成了一份好工作的标准。
Job security has become the touchstone of a good job for many employees.
对许多雇员来说，工作的稳定性已经成了一份好工作的标准。
The importance of Johnson's letter is not so much historical as emotional; it would become a touchstone for all who repudiated patrons and for all who embraced the laws of the marketplace.
约翰逊这封信的重要性与其说是历史上的，不如说是情感上的；它将成为所有否定资助者和所有拥护市场法则的人的试金石。
He spent a whole day doing this but none of them was the touchstone.
他花了一整天的时间来做这件事，但没有一件能成为试金石。
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