average interest rate on total contracted

例句：

1. 1. The average temperature in the city is20 degrees Celsius.
   这个城市的平均温度是20摄氏度。
2. 2. Theaverage income of a doctor is around $150,000 peryear.
   医生的平均年收入约为15万美元。
3. 3. The average life expectancy for womenin their 60s is8 years.
   60岁女性的平均预期寿命为8年。