an) average

I was just an average sort of student.

我只是一个普通的学生。

The fish were counted and an average weight recorded.

数了数鱼的数量，并把平均重量记录了下来。

They lost around half a kilogram over an average follow-up of 12 weeks.

在12周的平均随访中，他们轻了大约半公斤。

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。

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。

On an average we would be spending £300 per day.

平均下来，我们每天要花费300英镑。

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。

An average electric bill might go up$ 2 or$ 3 per month

每月电费可能会平均增加两三美元。

About 60 per cent of an average car is sourced from outside of the manufacturer.

一辆普通汽车上大约有60%的部件是由制造商以外的其他供应商提供的。

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%。

According to The Boston Globe, students who earned their bachelor's in 2012 have an average monthly loan payment of$ 312, which is one-third more than those who graduated in 2004.

据《波士顿环球报》报道，2012年获得学士学位的学生每月平均贷款为312美元，比2004年的毕业生高出三分之一。

Packaging is about a third of what is found in an average British dustbin.

英国垃圾桶里平均约有1/3是产品包装。

Johnson carried the ball an average of 6 yards per rush.

约翰逊跑动带球平均每次行进6码。

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。

Larvian women. Meanwhile, rose from 28th place in 1914 to become the tallest in the world a century later, with an average height of 169.8cm.

与此同时，拉脱维亚女性的平均身高为169。8厘米，从1914年的第28位升至一个世纪后的世界第一位。

In return for an averageof £ 44,000 of debt, students get an average of only 14 hours of lecture and tutorial time a week in Britain.

作为平均44，000英镑债务的回报，英国大学生每星期只获得14小时的上课和辅导时间。

In 1951 AC went public, having achieved an average annual profit of more than £50,000.

AC公司于1951年上市，当时平均年利润为5万多英镑。

On an average we would be spending £ 300 per day.

平均下来，我们每天要花费300英镑。

an average annual rainfall of 10 cm

10厘米的年平均降雨量

In 1951 AC went public, having achieved an average annual profit of more than £ 50,000.

AC公司于1951年上市，当时平均年利润为5万多英镑。

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。

These less-stressed workers gained an average of 62 minutes per week of productivity.

这些压力减缓的员工，平均每周增加了62分钟的生产率。

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。

It takes an average of ten weeks for a house sale to be completed.

售出一幢房子平均需要10周的时间。

In this area the per mu yield of wheat for an average year is 500 jin.

这儿小麦常年亩产500斤.

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.

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%。

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.

Parents spend an average of$ 220 a year on toys.

父母为孩子买玩具的花费每年平均为220元。

Most people walk at an average rate of 5 kilometres an hour.

大多数人步行的平均速度为每小时5公里。