a reasonable standard of living的用法和样例：
- Only in a few countries does the whole of the population enjoy a reasonable standard of living.
- They lead a high standard of living.
- The intended user they have in mind is a regular listener to the World Service who will have a reasonable standard of English and a developed skill in listening comprehension.
- Prudent man always fits his standard of living to his budget.
- Both the cost and the standard of living were lower before the war.