formal administrative act

例句：

1. 1.The government's decision to ban the sale of tobacco in all public places was a formal administrative act.
   政府决定在所有公共场所禁止销售烟草的行为是一次正式的行政行为。
2. 2. The company's new policy on employee training is an official administrative act that will affect all employees.
   公司关于员工培训的新政策是一项正式的行政行为，将影响所有员工。
3. 3. The mayor's announcement that the city would implement stricter environmental regulations was a formal administrative act aimed at protecting the environment.
   市长宣布该市将实施更严格的环保法规，这是一项正式的行政行为，旨在保护环境。