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- Jeff: Oh. It is held once every two years. 杰夫：噢，原来是每两年举行一届。
- On average,a powerful earthquake occurs less than once every two years. 通常，强烈的地震每两年发生不到一次。
- On average, a powerful earthquake occurs less than once every two years. 通常，强烈的地震每两年发生不到一次。
- Ministerial Conference: The WTO's top level decision-making body; meets at least once every two years. 部长级会议：世贸组织的最高决策机构，至少每两年开一次会。
- Organize national physical fitness weeks with distinct themes once a year and "Beijing Olympic Sports Festivals" once every two years. 每年组织一次主题鲜明的全民健身活动周，每两年组织一次 "北京奥林匹克体育节"。
- And they say only half the population would have to take it once every two years. 同时他们还指出，只需要半数以上的人口每两年口服一次疫苗即可。
- Frost in the urban areas is rare, although on average it occurs once every two years in the northern part of the New Territories. 在香港,结霜的现象在市区较罕见,但在新界北部地区,平均每两年发生一次。
- Wang Ping: In 1999,the World Championship,which is held once every two years ,arrived again. In June in Athens,Greene unexpectedly fixed the world record at 9.79 seconds. 王平：1999年，两年一度的世界锦标赛再次到来，6月在雅典，格林石破天惊地把百米世界纪录定格在9秒79。
- Wang Ping: In 1999,the World Championship,which is held once every two years,arrived again. In June in Athens,Greene unexpectedly fixed the world record at 9.79 seconds. 王平：1999年，两年一度的世界锦标赛再次到来，6月在雅典，格林石破天惊地把百米世界纪录定格在9秒79。
- Wang Ping: In 1999, the World Championship, which is held once every two years, arrived again. In June in Athens, Greene unexpectedly fixed the world record at 9.79 seconds. 王平：1999年，两年一度的世界锦标赛再次到来，6月在雅典，格林石破天惊地把百米世界纪录定格在9秒79。
- Financial limits should be reviewed annually, rather than once every two years, to take into account inflation so as to better maintain the real value of the limits. 经济限额应每年进行检讨,而非每两年进行一次,而且应充分考虑通涨之影响,令限额更贴近现实情况。
- The cognoscenti know that this honor, which is awarded once every two years to an economist under 40, is a little more difficult to win than the annually awarded Nobel Prize. 内行都知道：这个荣誉，每两年颁给40岁以下的经济学家，比每年一次的诺奖还要稍微难一点。
- Wang Ping: In 1999, the World Championship, which is held once every two years , arrived again. In June in Athens, Greene unexpectedly fixed the world record at 9.79 seconds. 王平：1999年，两年一度的世界锦标赛再次到来，6月在雅典，格林石破天惊地把百米世界纪录定格在9秒79。
- Make citywide follow-up investigations of the physique monitoring once every two years to make dynamic observations of the changes of the citizens'physique and publish the results of monitoring the citizens'physique in the coming six years. 在未来六年中，每两年进行一次全市范围内的体质监测的追踪调查，动态地观察市民体质变化状况，公布北京市民体质监测结果。
- Make citywide follow-up investigations of the physique monitoring once every two years to make dynamic observations of the changes of the citizens' physique and publish the results of monitoring the citizens' physique in the coming six years. 在未来六年中，每两年进行一次全市范围内的体质监测的追踪调查，动态地观察市民体质变化状况，公布北京市民体质监测结果。
- The Committee shall review as necessary, but at least once every two years, the implementation and operation of this Agreement, taking into account the objectives thereof, and the rights and obligations contained therein. 委员会应在必要时，但至少每2年一次，对本协定的实施和运用进行审议，同时考虑本协定的目标及其中包含的权利和义务。
- Student A: Yes. How surprising! Wang Ping: In 1999, the World Championship, which is held once every two years, arrived again. In June in Athens, Greene unex-pectedly fixed the world record at 9.79 seconds. 王平：1999年，两年一度的世界锦标赛再次到来，6月在雅典，格 林石破天惊地把百米世界纪录定格在9秒79。
- I see them once every two months. 我每两个月与他们见一次面。
- Since initiating in 1987, Wuqiao International Acrobatic Art Festival, China was held once every two years and each time attracted art organizations of dozens of countries to take a part. 中国吴桥国际杂技艺术节自1987年举办第一届以来，每两年举办一届，每届都吸引了几十个国家的艺术团体争相参加。
- He gets home leave every two years. 他每两年有一次探亲假。
