certain price的用法和樣例：
例句
- Economists have stated a general rule concerning marginal utility for an individual faced with a given budget constraint and given price.
經濟學家對一個面臨有限收入和一定價格的個人的邊際效用，總結了一條一般的法則。 - In certain price range, the seller's market to the buyers' market transition, the investment in real estates will make money the effect short-term also to reduce.
在一定價格範圍內，賣方市場會向買方市場過渡，房地產投資的賺錢效應短期也會降低。
