A frugal farmer的用法和样例：
- I had a frugal meal of bread and cheese last night.
- Take a frugal lunch box at noon.
- A frugal and simple life should be advocated.
- He ate a frugal supper of bread and milk.
- He was a VIP,but he had a frugal life.
- He was a VIP, but he had a frugal life.