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a particular length of time 一段时间；时期 a long/an extended period 长时间 a short/brief period 短暂/简短的时期 - period of something
a period of transition/uncertainty/expansion 过渡期/不确定性/扩张期 a period of two years/six months/four weeks 两年/六个月/四个星期 a two-year/six-month/four-week period 两年/六个月/四个星期 All these changes happened over a period of time. 所有这些变化都是在一段时间内发生的。 🔊🔊 A year-to-year lease has no fixed time period. 年度租赁没有固定的期限。 - for a period
The offer is available for a limited period only. 这一出价仅在有限的一段时间内有效。 This compares with a 4% increase for the same period last year. 这个数字与去年同期的 4% 升幅相近。 🔊🔊 The project will run for a six-month trial period. 这个项目将试运行六个月。 - over a period
The hall will be closed over a 2-year period. 大厅将在两年内关闭。 - during a period
We know little of her life during that period. 在那段时期，我们对她的生活一无所知。 The aim is to reduce traffic at peak periods. 目的是降低高峰时段的交通流量。 🔊🔊 Tomorrow will be cold with sunny periods. 明天天气晴朗，天气寒冷。
Extra ExamplesTopics Timea1Committee members will not be eligible for re-election within a period of two years. 委员会的成员在两年内没有资格再次参加竞选。 Eastern Europe entered a period of transition in the 1990s. 东欧在 20 世纪 90 年代进入一个过渡时期。 Public spending was cut during his period of office. 他任职期间削减了公共开支。 Sales have gone up in the last-five-year period. 在过去的 5 年中销售额呈上升趋势。 The balance must be paid within an agreed period of time. 余款必须在约定的时间内付清。 The film spans a period of 40 years of Castro's rule. 影片的时间跨度贯穿了卡斯特罗 40 年的执政岁月。 The medication is prescribed for a fixed period of time. 开的药只适合在固定的一段时间内服用。 The most formative period of life is childhood. 一生中对性格形成影响最大的时期是童年。 The period was marked by a succession of financial crises. 这一时期的特点是金融危机此起彼伏。 The view is that the government's honeymoon period is over. 看来政府的蜜月期已经结束。 There will be a reduced bus service over the Christmas period. 圣诞节期间公交车的班次将会减少。 Try breaking your period of study into 20-minute blocks. 试着把学习时间分成 20 分钟的小段。 We lived in Caracas for a brief period. 我们在加拉加斯小住过一段时间。 We visited five different cities within a two-day period. 我们在两天的时间内访问了 5 个不同的城市。 You can use the software free for a 30-day trial period. 你可以免费试用软件 30 天。 You have been paid for the full period of your employment with us. 你整个受雇期的酬金我们已经全部付清。 a critical period in the development of the project 项目进展的关键时期 a happy period in her life 她生命中的一段幸福时光 a period of transition between communist rule and democratic government 共产统治与民主政体之间的过渡时期 a period of transition from a totalitarian regime to democratic government 从极权主义政权转变为民主政府的过渡时期 after a long period of waiting 在漫长的等待之后 during the intervening period 在中间的一段时期 the period between his resigning and finding a new job 从他辞职到再找到工作之间的一段时间 the period from 1 July to 31 December 从7月1 日到12 月31 日期间 There are extra buses at peak periods. 高峰时段有额外的巴士。 There was a long period of uncertainty before we knew the final decision. 我们知道最终决定前，有很长时间事态并不明朗。
Oxford Collocations Dictionaryadjective- extended
- lengthy
- long
- …
- cover
- span
- begin
- …
- begin
- commence
- elapse
- …
- costume
- furniture
- after a period
- during the period
- throughout the period
- …
- the beginning of a period
- the start of a period
- the end of a period
- …
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a length of time in the life of a particular person or in the history of a particular country （人生或国家历史的）阶段，时期，时代 Which period of history would you most like to have lived in? 你最喜欢生活在哪一个历史时期？ 🔊🔊 This textbook covers the post-war period. 这一课本包含战后时期的历史。 The church dates from the Norman period. 教堂的历史可以追溯到诺曼时代。 We are currently studying the early medieval period. 我们目前正在研究中世纪早期。 Like Picasso, she too had a blue period. 和毕加索一样，她也有过一段以蓝色为主调的创作时期。 🔊🔊 Most teenagers go through a period of rebelling. 大多数青少年都要经历一段叛逆期。 🔊🔊
Extra ExamplesTopics Historya1The picture was painted by Picasso during his blue period. 这幅画是毕加索消沉时期的作品。 the late Victorian period 维多利亚时代后期 the period covered by the book 该书涉及的时期 a dark period in the country's history 该国历史上的一段黑暗时期
Oxford Collocations Dictionaryadjective- extended
- lengthy
- long
- …
- cover
- span
- begin
- …
- begin
- commence
- elapse
- …
- costume
- furniture
- after a period
- during the period
- throughout the period
- …
- the beginning of a period
- the start of a period
- the end of a period
- …
- (
geology 地质学 a length of time which is a division of an era. A period is divided into epochs. 纪（地质年代，代下分纪，纪下分世） the Jurassic period 侏罗纪 Dinosaurs died out during the Cretaceous period. 在白垩纪，恐龙灭绝了。
Oxford Collocations Dictionaryadjective- extended
- lengthy
- long
- …
- cover
- span
- begin
- …
- begin
- commence
- elapse
- …
- costume
- furniture
- after a period
- during the period
- throughout the period
- …
- the beginning of a period
- the start of a period
- the end of a period
- …
any of the parts that a day is divided into at a school, college, etc. for study 节；学时；课 ‘What do you have next period?’ ‘French.’ “你下一节是什么课？” “法语。” 🔊🔊 a free/study period (= for private study) 自习课
Extra ExamplesTopics Educationb2We've got French next period. 我们下节课上法语。 I have two free periods on Tuesday afternoons. 我在星期二下午有两个空闲时间。
the flow of blood each month from the body of a woman who is not pregnant 月经；经期；例假 Extra ExamplesI was thirteen when I started my period. 我 13 岁初潮。 I have my period and don't feel too great. 我来月经了，感觉不太舒服。 Missing a period is often one of the first signs that a woman is pregnant. 月经没来往往是女人怀孕的最初几个征兆之一。
Oxford Collocations Dictionaryadjective- heavy
- light
- menstrual
- …
- have
- start
- miss
- …
- start
- stop
- last
- …
- cramps
- pains
- (North American English) (British English full stop)
the mark ( . ) used at the end of a sentence and in some abbreviations, for example e.g. 句点；句号
length of time时间长度
lesson课时
woman妇女
punctuation标点
Word Originlate Middle English (denoting the time during which something, especially a disease, runs its course): from Old French periode, via Latin from Greek periodos ‘orbit, recurrence, course’, from peri- ‘around’ + hodos ‘way, course’. The sense ‘portion of time’ dates from the early 17th cent.