period是一个英语单词，主要用作名词、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”。

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 ]

柯林斯英汉双解大词典

period /ˈpɪərɪəd/ CET4 TEM4

1.N-COUNT A period is a length of time. 一段时间 [usu with supp]

2.N-COUNT 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

3.N-COUNT 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

4.ADJ 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 [ADJ n]

5.N-COUNT 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

6.N-COUNT 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 [美国英语]

7.N-COUNT When a woman has a period, she bleeds from her uterus. This usually happens once a month, unless she is pregnant. 经期

period of time 一段时间；时段

long period 长期的；长周期

short period adj. 短周期的；短过期的

transition period 过渡时期

construction period 施工期

time period 时期，期间

development period n. 发展期；发育期；开发期

of the period 当时

growth period 生长期；成长期；发育期

spring and autumn period 春秋时代

warring states period 战国时代

corresponding period 同期

in period 在周期内

production period 生产周期；生产期

storage period 保藏期，储存期；贮藏期；蓄水期

initial period 初始期

operation period 经营期限

first period 比赛的第一节

current period [经]本期

peak period 波峰周期；尖峰期