the result you get by adding two or more amounts together and dividing the total by the number of amounts

The average of the three numbers 7, 12, and 20 is 13, because the total of 7, 12, and 20 is 39, and 39 divided by 3 is 13. 7，12和20这三个数的平均数是13，因为7，12和20的和是39，而39除以3是13。

Prices have risen by an average of four percent over the past year. 物价在过去一年中上涨了4%。

My income's rather variable, but I earn £175 a day on average. 我的收入很不稳定，但是平均每天挣175英镑。

a standard or level that is considered to be typical or usual

The audience figures were lower than average for this sort of film. 对于这种类型的电影而言，这样的观众人数是低于平均水平的。

In western Europe, a seven to eight-hour working day is about the average. 在西欧，一天工作7到8小时基本属于平均水平。

On average, people who don't smoke are healthier than people who do. 一般而言，不抽烟的人比抽烟的人身体健康。

The quality of candidates was (well) below/above average. 这些候选人的素质（大大）低于／高于一般水平。

I expect to spend an average of $50 to $60 on a meal in a restaurant. 我去饭店吃饭，一般一顿饭也就想花50到60英镑。

to reach a particular amount as an average

Enquiries to our office average 1,000 calls a month. 我们办公室每个月平均接到1000个询问电话。

Many doctors average (= work an average of) 70 hours a week. 许多医生每周平均工作70个小时。

Trainee accountants average (= earn an average of) £32,000 per year. 实习会计师平均每年收入32000英镑。

average something out 算出…的平均数

average out 数量相当，达到平衡

average out at something 算出的平均值是，平均为

An average number is the number you get by adding two or more amounts together and dividing the total by the number of amounts.

average earnings/income/rainfall 平均工资／收入／降雨量

The average age of the US soldiers who fought in the Vietnam War was 19. 参加越南战争的美国士兵平均年龄为19岁。

typical and usual

The average person on the street is a lot better off than they were 40 years ago. 再普通再一般的人也要比40年前富裕多了。

a student of average ability 才智平平的学生

The food was fairly average (= not excellent, although not bad). 那里的食物很一般。