- an average of 100 people attend the annual conference.(每年大约有100人参加这次会议,强调整体情况) - the average of the monthly sales for the first quarter is 500 units.(第一季度月销售量的平均. In average 是概念上的平均,多用于专有名词, 例如: 1、weight in average 平均重量 2、it shows that the increase in average mutual communication does not mean the increase in general correlation. The economist calculated an average of inflation rates for various countries.