the touchstone

常見(jiàn)例句

That is the touchstone of our efforts in all these areas.
對(duì)于我們?cè)谒羞@些方面的努力，這是一個(gè)試金石。
Egypt is the most important Arab country and the touchstone for change in the Arab world.
埃及是最重要的阿拉伯國(guó)家，也是阿拉伯世界改革的試金石。
It had grown into a habit， to pick up pebbles and touch the chain， and to throw them away without looking to see if a change had come； thus the madman found and lost the touchstone.
拾起小石去碰碰那條鏈子，然后不看看變化與否，又把它扔掉，這已成了習(xí)慣；就是這樣，這瘋子找到了又失掉了那塊點(diǎn)金石。

For example, the touchstone of Senator Kerry's claim to strength was his service in Vietnam.
CENTERFORSECURITYPOLICY: The anti-strength candidate