period
noun [ C ] uk/ˈpɪə.ri.əd/ us/ˈpɪr.i.əd/
(TIME)
B1 一段时间，时期
a length of time
Her work means that she spends long periods away from home. 她的工作意味着她得长时间离家在外。
Unemployment in the first half of the year was 2.5 percent lower than in the same period the year before. 上半年的失业率比上年同期低2.5%。
15 people were killed in/over a period of four days. 在4天时间内有15人被杀。
The study will be carried out over a six-month period. 调查将持续6个月时间。
B1 课时，学时，一节（课）
in school, a division of time in the day when a subject is taught
We have six periods of science a week. 我们一周有6节自然科学课。
（人一生中或历史上的）时期;阶段
a fixed time during the life of a person or in history
Most teenagers go through a rebellious period. 大部分青少年都要经过一个叛逆期。
The house was built during the Elizabethan period. 这座房子是在伊丽莎白时期建造的。
- More examples
- Her time at university was the most eventful period of her life.
- He was one of the most important writers of that period.
- The war was followed by a long period of peace and prosperity.
- The 1990s were a period of rapid change.
- The police are carrying out spot checks on drivers over the Christmas period to test for alcohol levels.
(BLOOD)
（妇女的）月经，经期
the bleeding from a woman's womb that happens once a month when she is not pregnant
period pains 痛经
She'd missed a period and was worried. 她的月经没按期来，让她很担心。
(MARK)
mainly US (UK usually full stop)句号
the symbol . used in writing at the end of a sentence or at the end of the short form of a word
mainly US（用于一句话的结尾，表示某一话题已讨论完毕，不愿再继续）到此为止，就这样
said at the end of a statement to show that you believe you have said all there is to say on a subject and you are not going to discuss it any more
There will be no more shouting, period! 别再喊叫了，到此为止！
period
adjective uk/ˈpɪə.ri.əd/ us/ˈpɪr.i.əd/
period costume/dress/furniture 某个历史时期的服饰／服装／家具
the clothes or furniture of a particular time in history
They performed "Julius Caesar" in period dress. 他们穿着古装演《凯撒大帝》这部戏。