每四年一次的

are held every four years

按照美国宪法,总统每四年选举一次

27. constitution n. 宪法,构造,体质,体格,国体,章程,惯例 | are held every four years.按照美国宪法,总统每四年选举一次. | This is an unwritten constitution.这是一个不成文的法规.

The president is elected every four years

总统每四年选举一次

The floor is mopped every day. 地板每天都檫. | The president is elected every four years. 总统每四年选举一次. | The book was written by Dickens. 这本书是狄更斯写的.

quadrennial adj.: occurring once every four years

每四年一次的

16. take advantage of: make use of. 利用. | 17. quadrennial adj.: occurring once every four years. 每四年一次的. | 18. sensibly and soberly: reasonably and wisely. 合理而明智地.

quadrennial

每四年的,四年一次的

quadrasonic 四声道的 | quadrennial 每四年的,四年一次的 | quadruple 四倍的,四重的

quadricentennial

四百周年纪念的

quadrennial 每四年一次的 | quadricentennial 四百周年纪念的 | quadrilingual 四国语言的

sensibly and soberly: reasonably and wisely

合理而明智地

17. quadrennial adj.: occurring once every four years. 每四年一次的. | 18. sensibly and soberly: reasonably and wisely. 合理而明智地. | 19. Democrat n.: member of the Democratic Party. 民主党人.

This is an unwritten constitution

这是一个不成文的法规

are held every four years.按照美国宪法,总统每四年选举一次. | This is an unwritten constitution.这是一个不成文的法规. | He has a weak constitution. 他体质弱.

International Congress of Mathematicians

国际数学家大会

资料:国际数学家大会(International Congress of Mathematicians)是全球数学界最高层次、最具权威性的学术研究论坛,素有"数学界奥林匹克"之誉. 该会议由国际数学家联盟(IMU)组织,每四年召开一次,首次召开于1897年(瑞士苏黎世),至今共举行了23次(第一、二次世界大战期间曾停顿),

cooling-off period

冷却期

该法案包括每四年一次的审计师强制更换以及限制审计机构提供咨询服务,同时还提议对部分审计师设立为期两年的"冷却期"(cooling off period),在此期间不得被客户所雇佣.

ITU

国际电信联盟

10月22日开始为期一个月,在日内瓦(Geneva)举行的"国际电信联盟"(ITU)每四年一次的"世界无线通信大会"(World Radio Communications Conference,WRC-07)上,各参会国家与组织的代表,就无线通信领域各热点问题,展开了一系列辩论与磋商,

photoperiodic response：光周期响应

photoperiodic induction 光周期诱导 | photoperiodic response 光周期响应 | photoperiodism 光期性

Multi-Variate Statistical Analysis：多元统计剖析

311. 多项距阵 Multi-Nominal Matrix | 312. 多元统计剖析 Multi-Variate Statistical Analysis | 313. 发电厂 Power Plant