a prohibitive price的用法和样例：
- The government has put a prohibitive tax on foreign goods.
- There is a prohibition against smoking.
- A prohibition to the spark to die out.
- The act prohibits price discrimination that lessens competition or injures a competitor.
- For example, MSF says second-line drugs already cost$1,400 per patient per year in Kenya, while in Guatemala they're a prohibitive$6,500 annually.