•
an average of
英:
美:
常用释义:
平均数:表示一组数据的平均值。
平均是…
1、The price of a PC has fallen by
an average of
25% a year since 1982.───自1982年以来,个人计算机的单价年均下降25%。
2、An average of ten students are absent each day.───平均每天有十名学生缺席.
3、It carried
an average of
2.3 million passengers per weekday in 1998.───一九九八年内,地下铁路平日的平均载客量达230万人次.
4、Doctors work
an average of
90 hours a week, while a few are on call for up to 120 hours.───医生们平均每周工作90个小时,而有些出诊长达120个小时。
5、Corn was
an average of
two a bushel last year.───去年谷物平均每蒲式尔两美元.
6、An average of two students are absent each day.───每天平均有两个学生缺席.
7、In the autumn of 1940 London was blitzed by
an average of
two hundred aircraft a night.───1940年秋,伦敦平均每晚遭到200架飞机的空袭。
8、An average of 4 - spinal cord decompression was performed on all 30 patients.───所有30名患者均接受平均4个节段的脊髓减压.
9、The industrial exhibition clocked
an average of
5000 visitors a day.───据统计工业展览会参观人数平均每日五千人.
10、Kelly had scored
an average of
147 on three separate IQ tests.───凯利在3项不同的智商测试中平均得分147。
11、They went to the theatre on
an average of
10.3 times a year.───他们平均每年去剧院十点三次.
12、It takes
an average of
ten weeks for a house sale to be completed.───平均需要10周的时间才能完成一幢房子的销售。
13、This area is hit by
an average of
about 5 hailstorms a year.───这个地区平均每年遭受大约五次冰雹袭击.
14、An average of one new star is born in our galaxy each year.───平均每年在我们的星系中诞生一颗新的恒星.
15、The boats remain at sea for
an average of
ten days at a time.───这些船只每次在海上平均航行10天。
16、An average of 1500 persons pass here every day.───每天平均有1500个人经过此地.
17、Doctors work
an average of
90 hours a week, while a few are on call for up to 120 hours.───医生每星期平均工作90个小时,有几个24小时候命,达到了每周120个小时.
18、The boats remain at sea for
an average of
ten days at a time.───这些船平均每次在海上呆10天。
1、average Joe───普通人;平常人
2、ban the sale of───禁止出售
3、in virtue of───由于;凭借
4、average out───最终得到平衡;达到平均数
5、unaverage───adj.出众的;杰出的,不寻常的
6、to average out───平均
7、on average───平均;普通,通常
8、in charge of───负责;主管
9、to average───平均
年均40000
是不是这道题
last year the number of students who graduated with a driving licence reached 200000,an ____of 4000
...an (increase) of 4000.
去年毕业时已获得驾照的学生达到了20万人,增长了4000人。