average number of workers and staff

例句：

1. 1. The average salary for a software engineer is around $70,000 per year.
   软件工程师的平均年薪约为7万美元。
2. 2. The team's performance was average in this competition.
   这个比赛中，该团队的表现平平。
3. 3. The food at the restaurant was just average.
   这家餐厅的食物只是普通水平。