The cave-making recipe calls for a steady emission of volcanic gas and heat, a heavy annual snowfall at an elevation high enough to keep it from melting during the summer.
洞穴的形成需要火山气体和热量的稳定释放，海拔高到足以防止每年的大量降雪在夏季融化。
It can loosely be described as travel that takes place at regular intervals—often in an annual cycle—that may involve many members of a species, and is rewarded only after a long journey.
它可以比较粗略地描述成是发生在固定周期（这个周期通常是一年一次）的包含某一个物种很多成员的集体旅行，并且只有在长途旅行后才有回报。
Indeed, climate change will be a key topic at the Annual Meetings of the World Bank and International Monetary Fund this month.
事实上，气候变化将成为世界银行和国际货币基金会在本月召开的年会上的一项重要议题。
A dear friend of mine was visiting her parents, at a remote American farm, for their big annual party.
我的一个好朋友去探望她的父母，他们住在美国偏远的农场里，举办一年一度的大型聚会。
The figures were released by its marketing director, Ana Lopez, at a news conference opening its annual cigar festival.
这组数据由哈伯纳公司营销总监安娜·洛佩兹在其每年一度的雪茄节开幕会发布。
That might not sound particularly impressive, but the city is projected to grow at a blistering 10.58 percent annual rate, which would double the population in approximately seven years.
这听起来并不会让人觉得印象深刻，但是这个城市的人口每年正以10.58%的速度增长。这意味着，大约七年左右的时间，北海的人口将会翻倍。
For the first time in a decade, the PCS will hold a fringe event at the Tories' annual conference next month.
这是PCS十年内首次在保守党于下月举行的年度会议上举行这样一个边缘事件。
A major study, presented at the American Institute for Cancer Research annual conference, has revealed a strong connection between inactivity and unregulated cell growth.
一项在美国癌症研究中心年会上公布的大型研究披露，缺乏运动与人体细胞的不稳定生长之间有着紧密联系。
Last week I was on a panel, presenting clips from the show at the annual conference of the Materials Research Society, a scientific group that helped advise us on the show.
上周我参加一个研究小组，在材料研究协会的年会上介绍这部影片的剪辑。 材料研究协会是一个科研小组，帮助我们给这部影片出主意。
America's economy expanded at a 1.3% annual pace in the period from April to June of 2011. That was less than economists expected.
美国经济在2011年四月到六月间以年均1.3%的速度在增长，这比经济学家们的预计要慢。
It helps, too, that company profits in America are still growing at a double-digit annual rate.
同时它又帮助美国企业的利润依旧能保持二位数的年增长率。
Retail sales are still growing at a robust 16% annual rate.
商品零售仍旧以16%的年率强劲增长。
Inflation at the consumer level rose to a 4.9% annual rate in January 2011.
2011年1月，消费水平的年度通胀率攀升到4.9%。
Over the next five years, he estimates that the number of Internet users in China will grow at a compounded annual rate of 18.5%, while the U.S. will grow at only 2.2%.
他预计，未来五年中，中国网络用户数量每年的复合增长率将达到18.5%，而美国的增长率仅为2.2%。
Thanks largely to BskyB, broadcast revenues grew at a compound annual rate of 29% between the 1991-92 season—just before Division One became the Premier League—and 2007-08.
得益于天空体育（BskyB）的大力推广，英超联赛自1991-92赛季（也就是英甲更名为英超的第一个赛季）到2007-08赛季，其转播收入以29%的年增长率大大提高。
Tool shipments are running at a rate suggesting annual semiconductor capital spending of $40bn to $50bn, a level that has tended to cause meaningful rises in chip manufacturing capacity in the past.
以目前半导体设备的出货量计算，半导体行业的年度资本支出将达到400亿至500亿美元，在过去，这一支出水平往往表明，芯片制造产能将出现大幅度的增长。
The Federal Reserve said Friday that consumer credit outstanding contracted at a 1.6% annual rate in October, or about $3.6 billion.
美联储宣称未偿消费者信贷10月份的年对年缩减率为1.6%，约为36亿美金。
As lifespans lengthen, a person could still retire at, say, 66, but with a smaller annual benefit.
因为寿命延长，所以人们能在66岁退休，但获得相对少一些的年薪。
GETTING a seat at the annual Bayreuth Festival of Richard Wagner's operas is about as easy as shaking off a dwarf's curse: the average waiting time is nine years.
想在一年一度的拜罗伊特·瓦格纳音乐节中得到门票可不是件容易事，等待的时间和消除矮人身上的诅咒所需日子一样长：九年。
Wolfowitz's comments were made at a media conference marking the annual meetings of the World Bank and the International Monetary Fund this weekend.
沃尔福威茨是在世界银行与国际货币基金组织在本周召开的联合年会记者招待会上说这番话的。
According to BCG, assets under management in China grew at a compound annual rate of 25% between 2002 and 2007, though the figure will have taken a big hit in 2008.
根据BCG的报告，从2002年到2007年，中国大陆在理财基金托管下的资产以每年25%的复利增长，尽管这一数据在2008年遭受到了重大打击。
The cheap credit ignited an explosion in consumer spending. For the next seven years the economy expanded at a strong annual rate of 4.2%.
成本低廉的信贷引发了消费支出的急剧膨胀，此后七年中，希腊经济扩张速度颇为强劲，年增长率高达4.2%。
Its favoured inflation measure-the core price index for personal consumption expenditures-came in at a 0.4% annual growth rate.
它最有利的通胀措施——关于个人消费支出的核心物价指数- - -到达年0.4%的增长率。
However, a special ministerial round table held at the World Bank-IMF Annual Meetings in Singapore, ended with a strong call to donors to live up to their promises.
然而，在新加坡举行的世界银行和国际货币基金组织年会上召开的部长级特别圆桌会议以向援助国发出履行承诺的强烈呼吁告终。
Corporate America has been raking in massive profits – they flooded in at a record $1.68 trillion annual rate in the fourth quarter of 2010 – with unemployment near 9%.
在失业率接近9%的情况下，美国企业界已实现大量利润——2010年四季度的年化利润额达到创纪录的1.68万亿美元。
Real final sales—GDP minus inventory changes—surged ahead at a 7.1% annual rate in the last three months of the year.
最终实际销售额—GDP减去库存变化—GDP在去年最后三个月内以7.1%的年增长率迅猛增长。
Consumer spending sank at a 3.5% annual rate, similar to its third-quarter drop, despite a big rise in real after-tax income, thanks to the huge drop in petrol prices.
尽管由于石油价格大减，实际税后收入已较大增长，但消费者开销仍以3.5%的年速率缩减，与第三季度类似。
Consumer spending sank at a 3.5% annual rate, similar to its third-quarter drop, despite a big rise in real after-tax income, thanks to the huge drop in petrol prices.
尽管由于石油价格大减，实际税后收入已较大增长，但消费者开销仍以3.5%的年速率缩减，与第三季度类似。
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