a reserve price的用法和样例：
- He has put a reserve price on his house.
- You may also set a reserve price in a Standard auction.
- If the bid inviting party has set a reserve price, the confidentiality of the reserve price shall be maintained.
- Unless you have set a reserve price, the starting price is the lowest acceptable selling price for your item.
- I have kept a reserve fund in case of accidents.
- We must keep back a reserve of food.