average years of a generation

例句：

1. 1.The average salary for a software engineer is $70,000 per year.
   软件工程师的平均年薪是7万美元。
2. 2.The team's performance was below average, which affected their chances of winning the game.
   团队的表现低于平均水平，这影响了他们赢得比赛的机会。
3. 3. The average temperature in winter is around 10 degrees Celsius.
   冬天的平均温度大约在10摄氏度左右。