touchstone

'tʌtʃstәun

GRE

n a basis for comparison; a reference point against which other things can be evaluated

n. 试金石, 检验标准

20,944

BNC 频率

17,623

使用频率

touchstone由touch（触摸）和stone（石头）组成，意指一种可以用来测试或评估事物的标准或基准，就像用石头来测试金属的纯度。

例句

1. A good teacher is a touchstone for students to learn and grow.

一位优秀的老师是学生学习和成长的基石。

2. The company's success is often seen as a touchstone for other businesses in the industry.

公司的成功常被视为该行业其他企业的标杆。

3. Trust is a touchstone in any healthy relationship.

信任是任何健康关系的基石。