This "once in a lifetime" event actually may take place twice in some folks' lives.
这种“生平仅见”的事件实际上有可能在一些人的生活中发生两次。
Some legislators advocate mandating a sentence of life in prison for anyone who, having twice served sentences for serious crimes, is subsequently convicted of a third serious crime.
一些立法者主张对那些因严重罪行而两次服刑后又被判第三次严重罪行的人判处终身监禁。
While some economists predict continued recovery in the future, Baily says the only certainty is that banks are unlikely to make the same mistakes—twice.
尽管一些经济学家预测未来经济会继续复苏，贝利却说，唯一可以肯定的是银行不太可能再次犯同样的错误。
In 1998, some of these countries already exported more than twice their 1990 volumes and imported more than five times their 1990 volumes.
1998年，其中一些国家的出口量已经是它们1990年出口量的两倍多，而进口量是1990年的五倍多。
Some parents may not think twice about any of these choices and send their child to the only school available in the immediate neighborhood.
对于这些选择，有些家长可能还未再三考虑，就把孩子送到附近唯一的学校。
Remember, you're not keeping a journal to share with others, though some women do turn their journals into books (I have, twice).
记住，你写日志并不是与别人分享，尽管有些人把他们的日志出版了(我曾经有过两次)。
In a second experiment, researchers rigged a virtual ball-tossing game so that some of the 52 players would receive the ball only twice.
在第二个实验中，研究人员操纵一个虚拟的投球游戏，使得52个玩家中的一部分玩家只能接到两次球。
After getting burned once or twice for failing to cover some base, they develop a fool-proof routine to prevent that from happening again, then swear their eternal allegiance to it.
在某些地方上闯过一两次祸之后，他们就会制定出一个易于执行的例程去防止类似事件再次发生，然后发誓会永远拥护它。
Some people who buy the subsidized product resell it just down the street for twice the price.
一些购买了平价面包的人走到街道另一端，转手就以双倍的价格卖掉。
Some flu experts say you should keep going for the time it takes to sing Happy Birthday twice.
有些流感专家说你应该持续洗唱两次“生日快乐”的时间。
Researchers found the frequent users group performed significantly worse on the memory tests - in some they made twice as many errors.
研究表明经常使用的使用者组在记忆测试中表现明显的很差-在一些测试中他们会产生两次的错误。
That is mostly bad news for American families, which as I may have mentioned once or twice have seen their wages fall some 5% since 2000.
对于美国家庭而言这基本上是个坏消息，正如我可能提到过一、两次，2000年以来他们的工资降了约5%。
Miners and oil firms already account for some 30% of the FTSE all-share index, twice their weight in the index of global stocks (see chart).
矿业和石油公司已经占据金融时报全份额指数的30%左右，是全球股票指数中这一行业所占比重的两倍(见图表)。
During a concurrent GC we need to suspend managed threads twice to do some phases of the GC. These phases could possibly take a while to finish.
在并发GC运行的某些阶段，需要将托管线程挂起两次，这可能会花费一些时间。
Central Vietnam has seen record rainfall this week, with some areas getting twice as much rain as is normal for this time of year.
本周越南中部的降雨量已创纪录，某些地区的雨水是历年同时期的两倍。
Based on the labels on their cans, for example, some energy drinks contain as much as twice the caffeine as the stimulant NoDoz; most contain three times the caffeine found in caffeinated sodas.
比如说，若以饮料瓶上的标签为研究基础的话，有些高能量饮料包含的咖啡因是含咖啡因碳酸饮品的三倍之多。
Some people get cold sores twice a year; for others, it’s a frustrating, stressful, monthly ritual.
有些人1年会有两次疱疹发作，对于其他人，则是每月例行的公事。
You can do interval training once or twice a week (never two days in a row). Try some of these workouts.
你可以做间隔锻炼一周一次或者两次(不要连续两天)。
Methuselah is roughly twice Jupiter's mass and is estimated to be some 12.7 billion years old, and it suggested planets as potential habitats for life arose early in the universe's history.
Methuselah的质量约为木星的2倍，其年龄据推测约为127亿年，这表明在宇宙早期阶段也存在有适合生命诞生并栖息的行星。
But that can't explain what researchers at Dartmouth have discovered: Medicare spends twice as much on similar patients in some parts of the country as in others.
但这并不能解释达特茅斯的研究人员所发现的问题：同样的病症，该国某些地方的医保费用是其他地方的两倍。
First, if some nodes in your cell are left down for extended periods of time (likely twice the key lifetime), the nodes can lose the ability to communicate.
首先，如果计算单元中的某些节点在一段时间(比如密钥寿命的两倍)内一直停机，它们就会丧失通信能力。
In many countries that was half as long again as in 1970, and in some of them twice as long.
在许多国家，这些数字仅是1970年相应数字的一半，其中一些国家情况则是1970年数字的两倍。
Revenues are thought to be up by 14%, a powerful performance even if some rivals, notably the Chinese life insurers, are growing twice as fast.
收入预计将上升14%，即便一些竞争对手，特别是中国的寿险公司以两倍于此的速度增长，这也是非常强劲的业绩。
But when the plants had at least three drinks, some participants drank twice as much as others.
但是当安插者喝三杯以上的时候，一些人喝的酒已经达到了其它人的二倍。
There is mounting alarm over recent figures suggesting twice as many women are being made redundant as men in some parts of the country.
最近有数据表明，英国一些地方遭裁员的女性是男性的二倍之多，对此引来了越来越多的警告。
So instead of spending our savings on something we might only wear twice, should we just make them ourselves with some rhinestones, crazyglue, and a cheap pair of faux-leather gloves?
这么看来，与其把银行存款花在最多只会戴两次的东西上，还不如我们自己动手，用几颗莱茵石，一副便宜的人造革手套，再弄瓶万能胶就能做出来。
Such figures are raising some worries that the neighbourhood policy, which already allocates twice as much money to southern neighbours as to eastern ones, may be further skewed.
这些数字让人们不由担心，邻国政策也许会进一步偏斜。在这样的邻国政策下，欧盟拨给南部邻国的款项已是东部的两倍。
Such figures are raising some worries that the neighbourhood policy, which already allocates twice as much money to southern neighbours as to eastern ones, may be further skewed.
这些数字让人们不由担心，邻国政策也许会进一步偏斜。在这样的邻国政策下，欧盟拨给南部邻国的款项已是东部的两倍。
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