每隔四年，二月会多出一天——二十九号。
每隔四年进行一次选举，国会一年开一次会。
Elections take place every four years and Congress meets once a year.
因此每隔四年，二月二十九日就会加进日历里。
Therefore, every four years, February 29 is added to the calendar.
奥运会每隔四年在世界上一个不同的城市举办一次。
The Olympic Games are held every four years in a different city in the world.
奥运会每隔四年在世界上一个不同的城市举办一次。
Thee Olympic Games are held every four years in a different city in the world.
奥运会每隔四年在世界上一个不同的城市举办一次。
Olympic Games the Olympic Games are held every four years in a different city in the world.
每隔四年。
每隔四年，世界上最优秀的运动员都从四面八方汇集到一起参加奥林匹克盛会。
Once every four years, the greatest athletes from all over the world gather together to take part in the Olympic games.
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.
每隔四年，全世界就会为了奥运会而聚在一起。这两个星期充满了竞争、友情和国家荣誉。
Every four years, the world comes together for two weeks of competition, comradery and national pride for the Olympic Games.
每隔四年，这些人都会回答他们所吃水果和蔬菜等131种不同食物的频率，目前此项调查已进行了24年。
Every four years, for up to 24 years, they answered questions about how often they ate 131 different foods - including fruit and vegetables.
只使用候选人的姓氏，可能只有一个简短的口号，每隔四年这些标记就被挂在无数面墙上并落户于无数家前院。
Using only the candidates' last names, and perhaps a brief tagline, these signs hang on countless walls and populate countless front yards every four years.
世界杯再也不是一个每隔四年才举办一次的世界足球盛会，在那四年一次的聚会中，来自各大洲的球员，时常总是头回遭遇。
The World Cup is no longer a unique quadrennial moment of international football that pitches players from different continents against one another, often for the first time.
在古代奥运会上，每隔四年就要从举办地Elis的统治家族中选出十名身着紫衣的hellanodikai，意即“希腊人的裁判”。
In the ancient Olympics ten purple-clad hellanodikai—“judges of the Greeks”—were elected every four years from the ruling families in Elis, where the games were held.
从1924年开始，每隔四年(如果你把冬季奥运会算进来的话则为每隔两年)，全世界的注意力都集中到这一表现人性好的一面的人类活动上。
Every four years, or every two years when one includes the winter Olympics, which began in 1924, the world focuses on a human event that represents the good of humanity.
田纳西州大学的这项研究选取了169对35岁以下的已婚夫妇，在四年的时间里每隔6个月请他们填一份调查问卷。
The study at the University of Tennessee selected 169 married couples under the age of 35 and asked them to fill in questionnaires every six months for four years.
我一直跟进与内窥镜手术以来，每隔三至四年。
I have been following up with endoscopies every three to four years since the surgery.
我一直跟进与内窥镜手术以来，每隔三至四年。
I have been following up with endoscopies every three to four years since the surgery.
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