But in an average year, two or three will strike the mainland of North America.
但平均每年会有两到三个袭击北美大陆。
In an average year more than 100,000 Americans are shot by guns, more than 30,000 fatally.
因为平均每年将有超过10万的美国人遭到射击，其中有超过3万人致死。
In an average year, the geological survey estimates that several million earthquakes occur around the world.
地震调查作出的估计显示，在一年中，就要发生几百万次地震。
The rains were abnormally heavy -- the Yangtze basin had 15 percent more rainfall in 2010 than in an average year.
2010年，降雨殊为异常，长江流域的降水量要比平常年份多出15%。
It was the 34th year running that global temperatures have been above the 20th-century average; the last below-average year was 1976.
至此已有连续34年全球气温超过20世纪平均温度，最近一次低于平均值是1976年。
Meanwhile, pessimists can still bemoan that with a projected 28 approvals for the full year, 2008's looks like another below-average year.
与此同时，悲观者预计全年批准28种新药，2008年更像一个低于平均数的年份。
The available surface water resources are consist of available water supplied both by built works and intended works in design average year.
地表水可利用量。应包含现有水利工程的可供水量和设计水平年内规划拟建水利工程所能提供的水量。
Seasonal influenza kills up to 500,000 people in an average year but Shindo said that in Mexico, at least, the H1N1 flu was causing more severe disease.
Shindo说道，季节性流感平均每年要造成50万以上的人死亡，但是在墨西哥，h 1 n 1流感正在造成更严重的疾病。
Seasonal influenza kills up to 500, 000 people in an average year but Shindo said that in Mexico, at least, the H1N1 flu was causing more severe disease.
Shindo说道，季节性流感平均每年要造成50万以上的人死亡，但是在墨西哥，H1N1流感正在造成更严重的疾病。
People living in 15 emerging nations, led by India, Bangladesh, China, Vietnam andPakistan, accounted for almost 80 percent of all those affected by floods in an average year, it said.
受灾人口主要分布在15个国家，以印度、孟加拉共和国、中国、越南和巴基斯坦为首，占到全球每年受灾人口的80%。
The average citizen in the developed world uses over 155kg of paper per year.
发达国家中普通公民每年的用纸量超过155公斤。
Victoria Falls has had above average levels of rainfall this year.
维多利亚瀑布今年的降雨量高于平均水平。
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%。
400 people a year die of this disease on average.
平均每年有400人死于这种疾病。
The average German will enjoy 40 days' paid holiday this year.
德国人今年平均将享有40天带薪假期。
Economic growth is expected to average 2% next year.
明年经济增长预计平均可达2%。
Nowadays, American kids on average receive about $800 per year in allowance.
现在，美国孩子平均每年得到大约800美元的零用钱。
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。
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。
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