average adjustment

例句：

1. 1.The average temperature in winter is below freezing point.
   冬季的平均温度低于冰点。
2. 2. She has an average height for her age.
   她对于她的年龄来说身高是中等的。
3. 3.The company's average profit margin is 10%.
   该公司的平均利润率为10%。