体重中等的

例句：

1. 1. The average temperature in winter is around 5 degrees Celsius.
   冬天的平均温度大约是5摄氏度。
2. 2.She has an average height for her age.
   她对于她的年纪来说，身高算是中等。
3. 3.The team's performance was average, but they improved significantly in the next game.
   球队的表现平平，但在下一场比赛中显著提高。