standard rate zone

例句：

1. 1. The company has set up a standard rate zone for its employees to use.
   该公司为员工设置了标准费率区。
2. 2. The new policy will affect the standard rate zone in the city.
   新政策将影响该市的标准费率区。
3. 3. The government is considering expanding the standard rate zone to accommodate more people.
   政府正在考虑扩大标准费率区以容纳更多人。