Jeff: Oh. It is held once every two years.
杰夫：噢，原来是每两年举行一届。
The Council conferences are convened once every two years.
理事会每二年举行一次会议。
The soldiers will go home on leave once every two years.
士兵们每两年回家休假一次。
Article 2 The PAQE shall be in a national unified form and shall be held once every two years.
第二条专利代理人资格考试采取全国统一考试方式，每两年举行一次。
IOC and the International Federations and the national Olympic Committee were held at least once every two years will be joint.
国际奥委会执委会与国际单项体育联合会和国家奥委会分别至少每两年举行一次联席会。
The exercise needs to be run at regular intervals, probably no less than once every two years but not more than every six months.
需要定期运行测试，可能应该不少于两年一次，但是不多于每六个月一次。
The assessment is organized once every two years since a regulation on the village doctors' professional qualification took effect in 2004.
自从2004年的农村医生行医资格条例生效后，该评审将会每两年举办一次。
Among them, the car with compressed natural gas cylinders for the first time test, a second test for three years, after the second inspection once every two years.
其中，车用压缩天然气钢瓶的首次检验、第二次检验为三年一次，第二次检验后每二年进行一次。
This cyclic weather system normally occurs once every two to seven years, and last reared its head in 2007.
这种气候系统的循环每2到7年发生一次，上次抬头是在2007年。
I once saw an operating system wiped out by a two-line cleanup script that had been working every day for two years.
我曾经看到一个操作系统被一个两年来每天都在运行的两行清理脚本擦除。
Pandas are notoriously fussy when it comes to finding mates. Females in the wild normally have a cub once every two to three years, and the fertility of captive giant pandas is even lower.
大熊猫寻找伴侣时非常挑剔，野生雌性大熊猫每隔两三年生一只幼仔，圈养大熊猫的繁殖率就更低了。
I believe in practicing prudence at least once every two or three years.
我相信每两年或是三年我们最起码得有一次践行谨慎的时候。
Two moons appearing at the same time happens only once every 1, 000 years and isn’t scheduled to reappear until 2287.
两个“月亮”同时出现的情况1000年才发生一次，2287年之前不会重新出现。
Inauguration Day occurs once every four years, about two and a half months after the national election.
就职日发生每四年一次，约两个半月后的全国选举。
Albatrosses breed once every one or two years. While rearing youngsters, parents undergo journeys of thousands of miles to find food.
信天翁每一或二年繁殖一次，为了喂养孩子，他们跋涉数千英里去觅食。
I believe in prudence at least once every two or three years.
我坚信每两三年至少一次提醒自己慎重行事是必要的。
El Ni? O, the periodic warming of the equatorial Pacific that induces storms and other climatic events, historically occurs once every three to seven years and lasts for up to two years.
厄尔尼诺是赤道附近的太平洋周期性变暖现象，引发风暴和其它气候事件，历史上每三至七年发生一次，持续时间可长达两年。
The CDC survey is based a sample about one-tenth the size of the CBS study's, and comes out every two years, while the CBS survey is held once in 10 years.
疾病控制中心的调查规模为中央统计局调查规模的1/10，每两年开展一次调查，而中央统计局的调查是10年举行一次。
The soot-blowers should be disassembled and inspected every two years. The carriage must be changed HJ-30 engin oil once a year.
吹灰器一般每两年解体检查一次，跑车每年换HJ—30机械油一次，注油量应与正常油位线平齐。
Patients were asked whether they visited a dentist at least once every six months, every one to two years, rarely, or never.
患者被问及他们是半年一次，两年一次，更少，或者从来没看过牙医。
I believe in practicing prudence at least once every two or three years.
我相信每隔两或三年便要谨慎行事。
Should be the ball out to dry laundry re-use, each time after washing clothes. The proposed change once every two or three years.
应把洗衣球拿出来晾干再使用，每次洗完衣服后。建议每两三年更换一次。
Generally, actuators operate without a large amount of maintenance, as 46% report that they have to service actuators once every three or more years, and 29% said once per two years.
一般来说，执行机构的运作，没有大量的维修，因为46%报告说，他们要服务器每隔三年或三年以上，29%的人表示每二年一次。
Generally, actuators operate without a large amount of maintenance, as 46% report that they have to service actuators once every three or more years, and 29% said once per two years.
一般来说，执行机构的运作，没有大量的维修，因为46%报告说，他们要服务器每隔三年或三年以上，29%的人表示每二年一次。
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