戴维斯估计六年来就要求他进行了一次短打。
Davis estimated he had been called on to bunt once in six years.
证明的最初期限为五年，每年进行一次审查，以确保渔业继续达到所要求的标准。
Certification is for an initial period of five years, with an annual review to ensure that the fishery is continuing to meet the required standards.
去年夏天，我和妻子存了一年的钱，这样我们就能去加勒比的几个海岛进行一次浪漫之旅。
Last summer my wife and I had saved for a year to be able to take a romantic cruise to several Caribbean islands.
第一次任务是在十年前进行的，当时在全世界进行了现场直播。
The first mission was undertaken a decade ago and broadcast live then worldwide.
不幸的是，徐在他最后也是最长的一次旅行中病倒了，这是他在中国西南地区进行的为期4年的旅行。
Unluckily, Xu became seriously ill during his last and longest journey, a 4-year trip through the Southwest of China.
在这次历史性访问之后的几年里，美国总统理查德·尼克松于1972年对中国进行了一次具有里程碑意义的访问。
In the years that followed the historical visit, US president Richard Nixon made a landmark visit to China in 1972.
1955年，教皇庇护十二世授权对历法进行了一次修订。
In 1955 Pope Pius XII authorized a rubrical revision, chiefly concerned with the calendar.
这是自2008年以来的又一次增长，但是自从每年对新的物种进行调查，也因而发现更多的物种濒临灭绝。
This is an increase from 2008, although since more species are examined each year, more are found to be endangered.
该地区最近一次黄热病大规模预防接种运动是在1987年进行的。因此，这里的人口极易受该病的影响。
The most recent yellow fever mass vaccination campaign in this area was conducted in 1987 and as a result the population is highly susceptible to the disease.
对于涉及处理石油、液气态化学品的港口，则要求每两年进行一次检查，同时还要建立紧急预案并进行演习。
Ports that handle oil, liquefied chemicals and gases are now required to carry out checkups every two years, as well as to come up with emergency response plans and to conduct drills.
国家统计局在2010年进行的10年一次的人口普查结果表明，他们的话或许是对的。
The results of a decennial population census by the National Bureau of Statistics in 2010 shows they might be right.
与草不同，石头需要很少的维护- - -在春天进行一次好的电动清洗，一年的维护就搞定了。
Unlike grass, stone requires little maintenance - one good power wash in the spring and you're done for the year.
普华永道，一家咨询会计公司，进行了两年一次的对过去十年里经济犯罪的调查。
PricewaterhouseCoopers (PwC), a consulting and accounting firm, has conducted a biennial survey of economic crime for the past ten years.
佩纳·赫尔南德斯完成了她的研究课题，进行一年一次的回家旅行。
Pena-Hernandez, who is finishing her Ph.D, makes a trip home once a year.
同时，英国皇家盲人协会还建议人们每两年进行一次正常的眼部检查。
In the meantime, the RNIB recommends that everyone has a normal eye test every two years.
美联储的这项调查每三年进行一次。
在1973年进行了第一次与挪威和英国的国际连接。
The first international connections, to Norway and England, were added in 1973.
2007年的农业普查是第一次对古老的谷仓进行追踪调查；下一次普查要等到2012年。
The 2007 agriculture census was the first to track old barns; the next one is not until 2012.
为了解开这个谜，科学家们进行了一次海洋探险，去钻探145亿年前就在水下存在的超级火山。
To help solve this mystery, scientists went on an ocean expedition to drill into a large, 145-million-year-old underwater supervolcano.
有说法是，爱尔兰人对2001年否决奈斯条约时的情景记忆犹新，欧盟的解决方案只是让爱尔兰再进行一次投票。
The Irish, it is said, should remember what happened when they said No to the Nice treaty in 2001: they were simply invited to vote again.
在预算中，一项业务通常每年都要进行一次评估，并对计划执行一次修改，然后在接下来的一年中便可以多次访问以跟踪目标的进展。
During budgeting, a business typically evaluates and performs one-time per year modifications to a plan and re-visits that plan many times during a year to track progress towards goals.
目前，大部分系统都是为在不断变化（而不是每十年才变化一次）的市场上进行竞争的商业设计的。
These days, most systems are being designed for businesses competing in markets that change constantly, not once every ten years.
2007年和2008年都重复进行了这项调查，第一次受访的儿童有四分之三都参与了这三次调查。
The survey was repeated in 2007 and 2008, with about three-quarters of the original group taking part in all three.
2002年进行的研究表明为关节炎患者在膝盖处进行一次虚假手术能产生跟进行真正手术的相同的效果。
A study carried out in 2002 suggested that fake surgery for arthritis in the knee provides similar benefits to the real thing.
在本周五进行了一次成功的开机点火试验，而第一次核碰撞将在秋季进行，到时设备将围绕千年时间问题满功率负载运转实验。
A successful test-firing was held on Friday and the first nuclear collisions will take place in the autumn, building up to full power around the time of the millennium.
当她在1968年去世时，她正策划进行另一次为期三年的环球之旅。
When she died in 1968, she was planning another three-year world tour.
自1984年这位传奇的花旗总裁退休之后，花旗集团(在1998年进行了一次兼并)已经数次出现资本短缺的窘境了。
On several occasions since the legendary Citicorp boss retired in 1984, the bank and its successor, citigroup-created in a merger in 1998-have been caught embarrassingly short of the stuff.
自1984年这位传奇的花旗总裁退休之后，花旗集团(在1998年进行了一次兼并)已经数次出现资本短缺的窘境了。
On several occasions since the legendary Citicorp boss retired in 1984, the bank and its successor, citigroup-created in a merger in 1998-have been caught embarrassingly short of the stuff.
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