a standard of value的用法和样例：
- The concept of GNP is useless without a standard of value such as the dollar.
- A standard of measurement or judgment; a criterion.
- Regarded or employed as a standard of reference, as in surveying.
- A metallic solid used as a standard of comparison in weighing.
- anything that is generally accepted as a standard of value and a measure of wealth.
- Public benefit is the basic standard of value of economic law.