大学英语词汇短语释义解析及例句 an average of


释义：

an average of 平均是……

例句：


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。



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。



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。



Kelly had scored an average of 147 on three separate IQ tests.

凯利在3次单独进行的智商测试中平均得到147分。



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。



The price of a PC has fallen by an average of 25% a year since 1982.

1982年以来个人电脑的价格平均每年下降25%。



In the autumn of 1940 London was blitzed by an average of two hundred aircraft a night.

1940年秋，伦敦平均每晚被两百架飞机空袭。



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。



At all 14 state schools, tuition and fees are going up this autumn by an average of about 10 percent.

所有14所州立大学今年秋季的学杂费都将上涨平均约10％。



Those in the other two groups gained an average of 4.3 points.

另外两组儿童的智商平均增加了4.3分。



Seattle gets an average of a mere seven days a year with thunder.

西雅图平均每年只有7天会打雷。



Gasoline now costs an average of $3.15 a gallon, seven cents shy of the record set last May.

汽油现在的平均价格是每加仑3.15美元，仅比去年五月的记录低了七美分。



To stabilize its population—discounting immigration—women must have an average of two children.

为了稳定人口——减轻移民的影响——妇女必须平均生育两个孩子。



Between 1969 and 1989 employed Americans added an average of 138 hours to their yearly work schedules.

在1969年至1989年期间，美国人的年度工作时间平均增加了138个小时。



The IQ of the children in the two musical groups rose by an average of seven points in the course of a year.

在一年中，两个音乐小组中的儿童智商平均提高了7分。



Tips on these bills were an average of three percentage points higher than tips on bills without the message.

这些账单上的小费比没有信息的账单上的小费平均高出3个百分点。



Altogether the volunteers logged 433 unintentional actions that they found themselves doing—an average of twelve each.

志愿者们一共记录了433件他们发现自己在无意中做的事情——平均每人12件。



With costs falling and kitchen appliances becoming "status" items, owners are throwing away microwaves after an average of eight years.

随着成本的下降，并且厨房电器成为象征“身份”的物品，业主平均在使用了八年之后就把微波炉扔掉了。



A study published in the New England Journal of Medicine estimated that there are an average of 30 in-flight medical emergencies on U.S. flights every day.

发表在《新英格兰医学杂志》上的一项研究估计，美国航班上每天平均会发生30起飞行中医疗紧急事件。



Involvement in sports, in particular, rose almost 50% from 1981 to 1997: boys now spend an average of four hours a week playing sports; girls log half that time.

特别体育运动参与率从1981年到1997年上升了近50%：男孩们现在平均每周花四个小时做运动；而女生则只花一半的时间。



This year's rise, an average of 2.7 percent, may be a fraction lower than last year's, but it is still well above the official Consumer Price Index (CPI) measure of inflation.

今年的平均涨幅为2.7%，虽然可能略低于去年，但仍远高于官方的消费者价格指数（CPI）所反映的通胀水平。



In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they had spent nearly six hours a week.

1981年，美国儿童平均每周花在家务上的时间略少于两个半小时；到1997年，这个时间达到近6个小时。