有研究表明，在道路上画上笔直的横杆，可以在开始将司机的平均速度降低一半。
Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half.
有带薪假期的全职员工平均只休一半的假期。
Fulltime employees who do have paid vacation days only use half of them on average.
享受带薪假期的全职员工平均只使用了一半的假期。
Full-time employees who do have paid vacation days only use half of them on average.
挪威人的平均生活水平高于美国人，但对气候变化的贡献仅为美国人的一半。
The average Norwegian is better off than the average US citizen, but contributes about half as much to climate change.
有时候也住在其他的地方，她说她的足迹已经遍及平均一半的美国人家。
By living abstemiously on other fronts, she said she had managed to keep her carbon footprint to half that of the average American.
生活费指数指各邮政区域间生活费用的对照，100为平均数，200指平均数的两倍，50为平均数的一半，以此类推。
The cost of living index compares cost of living among Zips with "100" being average, 200 being twice the average, and 50 being half the average and so on.
一个可喜的变化是，雪豹占用的硬盘空间只有不到Leopard的一半。苹果说，升级后用户平均能释放出大约7GB空间。
One delightful change: Snow Leopard takes up less than half the room on a hard disk that Leopard did, and Apple says the average user who upgrades will free up about 7 gigabytes of space.
在新兴市场上的平均市盈率大约是10%，不及华尔街的一半。
The average p/e ratio in emerging markets, based on future expected profits, is around ten, not much more than half of Wall Street's.
不过她们的平均生育率是每人三个小孩，比她们母亲的生育率的一半还要少。
Yet they have just over three children now, less than half the number their mothers had.
获准的购房抵押贷款数量大约是长期平均水平的一半左右。
The number of mortgages approved for house purchase is around half the long-run average.
在第一季度，金融部门的借款增长率降低到5.1%，大约是2002年到2007年之间平均水平的一半。
In the first quarter, financial-sector borrowing slowed to a 5.1% growth rate, about half of the average from 2002 to 2007.
桑德伯格指出，夫妻收入能力相当，且一同分担家务和育儿责任的家庭，其离婚率只有平均值的一半。
Households with equal earning power and Shared responsibility for kids and chore typically have half the divorce rate, Sandberg said.
在经济低迷之前，日本公司的平均资本回报率就在10%左右，这只是美国公司的一半。
Before the downturn, Japanese companies' return on equity averaged around 10%, about half the level of American firms.
与身体健全的工人相比，身有残疾的工人的平均工资不到他们的一半。
The average salary of a disabled worker is less than half that of a non-disabled worker.
德里由于渗漏失去了它所得到的近一半的水，原因既有水管老化还有偷窃，剩下的水也没有被平均分配。
Delhi loses about half the water it gets to leakage, from both decaying pipes and theft, and what's left isn't evenly distributed.
平均来说，参与调查的人们答错了一半的问题，很多人甚至对关于他们自己信仰的问题也无。
On average, people who took the survey answered half the questions incorrectly, and many flubbed even questions about their own faith.
但更重要的是消费支出的复兴，衰退后的经济增长平均一半来自消费。
But more important was the resurgence in consumer spending, which accounted for half of post-slump growth, on average.
1990- 2008年，玉米产量上升1.8%左右，接近其长期平均水平，小麦产量增长不及玉米的一半，跟自己的历史平均水平相比增加了一半。
Maize yields in 1990-2008 rose by 1.8% a year, close to their long-term average; wheat yields increased by less than half that, half their historic average.
作者统计了下个赛季确定观看联赛的英国球迷的平均比例：接近一半。
The authors calculate the average proportion of English fans who are sure to watch their club next season: about half.
多于五分之一的美国儿童居住在相对贫困的家庭，这些家庭的年收入不到全国家庭平均收入的一半。
Over a fifth of American children live in relatively poor households, earning less than half the national average household income.
(持续增加)但是增长仅仅只有在早先四个复苏的前四年的的平均增长的一半。
[it continues to grow] But that growth is barely half the average increase during the initial four years of the previous four recoveries.
相比上个十年的记录，这只是平均水平的一半。
That's still only about half the average level recorded over the last decade.
比特币的货币供应以平均每小时300单位货币的速度增加，但每隔四年速率将降低一半。
The Bitcoin supply increases at a rate of 300 coins every hour on average at the moment, but every four years that rate will fall by a half.
在南亚，中学适龄女童的入学率只有47%。平均来说，女性入学年限只有男性的一半。
In South Asia, only 47 % of secondary school-aged girls are enrolled in school, and women have, on average, only half as many years of schooling as men.
在南亚，中学适龄女童的入学率只有47%。平均来说，女性入学年限只有男性的一半。
In South Asia, only 47 % of secondary school-aged girls are enrolled in school, and women have, on average, only half as many years of schooling as men.
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