n.試金石；檢驗(yàn)標(biāo)準(zhǔn)

Love is the touchstone of virtue. 愛情是美德的試金石。

Adversity is man's true touchstone. 逆境是人真正的試金石。

The greatest touchstone of any work is time. 時(shí)間是檢驗(yàn)一切的最好的試金石。

The touchstone of a contract is the notion of equality. 檢驗(yàn)契約的標(biāo)準(zhǔn)是平等的觀念。