英 [ˈpɪəriəd] 美 [ˈpɪriəd]
n. 一段时间，时期；（人生或国家历史的）阶段，时代；（地质年代划分的）纪；课时，节；（练习、训练或学习的）时段；（妇女的）月经，经期；（体育比赛的）局；<美>句号，句点；（物理）（振动或循环的）周期；（天文）自转（或公转）周期；（数学）（周期函数的）周期；（化学）周期元素；（修辞）完整句；（乐）乐段，乐节
adj. 具有某个时代特征的
adv. <美>到此为止，不再说了
复数periods
period /ˈpɪərɪəd/ CET4 TEM4
可数名词 A period is a length of time. 一段时间
This crisis might last for a long period of time.
此次危机可能会持续很长一段时间。
...a period of a few months.
…几个月的时间。
可数名词 A period in the life of a person, organization, or society is a length of time that is remembered for a particular situation or activity. (个人、组织或社会的) 时期
...a period of economic good health and expansion.
…一段经济健康发展和扩张时期。
He went through a period of wanting to be accepted.
他经历了一段渴望得到接受的时期。
可数名词 A particular length of time in history is sometimes called a period. For example, you can talk about the Civil War period or the Prohibition period in the U.S. (历史) 时期
The novel is set in the Roman period.
该小说的背景是罗马时期。
No reference to their existence appears in any literature of the period.
该时期的任何文献中都没有提及他们的存在。
形容词 Period costumes, furniture, and instruments were made at an earlier time in history, or look as if they were made then. 具特定历史时期特点的
The characters were dressed in full period costume.
剧中人物全都身着具有时代特色的服装。
可数名词 Exercise, training, or study periods are lengths of time that are set aside for exercise, training, or study. (练习、训练或学习的) 时段
They accompanied him during his exercise periods.
在他的练习时段，他们都陪着他。
可数名词 A period is the punctuation mark (.) that you use at the end of a sentence when it is not a question or an exclamation. 句号
可数名词 When a woman has a period, she bleeds from her uterus. This usually happens once a month, unless she is pregnant. 经期
Can you get pregnant if you have sex during your period?
经期性交会怀孕吗？
an amount of time
a time period of 30 years ; hastened the period of time of his recovery ; Picasso's blue period
同义词： time period / period of time
one of three periods of play in hockey games
a stage in the history of a culture having a definable place in space and time
a novel from the Victorian period
同义词： historic period / historical period
the interval taken to complete one cycle of a regularly repeating phenomenon
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
同义词： menstruation / menses / menstruum / catamenia / flow
a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations
in England they call a period a stop
同义词： point / full stop / stop / full point
a unit of geological time during which a system of rocks formed
ganoid fishes swarmed during the earlier geological periods
同义词： geological period
the end or completion of something
death put a period to his endeavors ; a change soon put a period to my tranquility
周期-引用次数：1452
The economy of our country is in an ascension period currently.
当前中国经济处于新一轮上升周期，以改善住、行条件为特征的新消费结构升级开始启动。
历程-引用次数：198
Now ,reform of China’s state-owned commercial bank has practice four period .
目前，我国四大国有商业银行已走过的改革历程可大致分为四个阶段。
纪-引用次数：12
期间-引用次数：649
Sixth, the criminal appeal an unlimited period, unlimited number of times.
其六,刑事申诉期间无限、次数无限。
期限-引用次数：300
Chapter four discusses the period of insurance and payment clause.
本文第四部分,将讨论医疗责任保险中重要的时间、期限概念,以及保险限额问题。
时期-引用次数：457
Sung Dynasty is an important period for Ancient China socio-economic development.
宋代是中国古代社会经济发展的重要时期。
参考来源宋代医者群体若干问题研究
过程；病期；病程
时期-引用次数：3961
This was an open period on researching Su Shi's aesthetics.
这是一个苏轼研究多元化开放的时期。
乐段；乐节
句点，句号；(用于缩略词后的)圆点；完整句 (尤指复合句)
长复合句
句号
自转(或公转的)周期；【物理学】摆(交流电)的周期
期间
周期
时期
句点
周期
周期
周期
周期
期
时期
...定时器的值相互比较，一旦两个值相等时，产生中断并驱动事先设定好的动作；PWM则是输出脉冲宽度可调的信号，脉冲的周期（period）和工作循环周期（duty cycle）是由内部的定时器比较产生的，因此也需要搭配定时器来使用。
比如水电工和泥工在一定时期(Period)就是同时在做的，泥工和木工也有时是在同时做的。
时代(Period)： 三叠纪晚期 距今2.35亿-2.1亿年前
... 句号（period）. 逗号（comma）, 冒号（colon）: ...
periodical [数] 周期的；定期的
periodic 周期的；定期的
periodically 定期地；周期性地；偶尔；间歇
periodical 期刊；杂志
periodicity [数] 周期性；频率；定期性
When did you last have a period ?
你上一次月经是什么时候？
It was a period of intense activity.
那是活动激烈的时期。
The novel is set in the Roman period.
该小说的背景是罗马时期。
During this period,many experts warned of mass starvation in the developing world where populations were expanding faster than crop production.
VOA : special.2009.11.10
It began to infiltrate other disciplines and was in general a high-spirited horse for that certain period of time.
它逐渐渗入到其它学科,总之是那个时代的一匹黑马。
文学理论导论课程节选 : 耶鲁公开课
And obviously within this long period many many different ideas and perspectives were involved within each side of conflict.
很明显，很久了,非常多的不同的观点和看法,出现在冲突的双方之中。
人性课程节选 : 普林斯顿公开课
During this period, hair grows at a rate of about three tenths millimeters a day, or one centimeter a month.
VOA : special.2011.04.05
The Harlem Renaissance was a period in which black artists explored their culture and showed pride in their race.
VOA : special.2009.02.22
The 2001-10 period, therefore, was not typical but more like the 1930s and 1970s.
But more than 100 people died over the period in accidents involving on-demand flights.
Time stops, and the one-hour viewing period permitted by park authorities is over in a flash.
period是一个英语单词，名词、形容词，作名词时意思是“周期，期间；时期；一段时间；经期；课时；句点，句号”，作形容词时意思是“某一时代的”。