| [/ˈpɪərɪəd; ˋpɪrɪəd/] n 用法:
1 length or portion of time 一段时间; 时期:
a period of three years 三年的时间 *
He has had several long periods of work abroad. 他在国外长期工作过几次. *
a period of peace, recovery, uncertainty 和平、 恢复、 不稳定时期 *
showers and sunny periods, eg in a weather forecast 阵雨间晴（如在天气预报所述） *
The work must be completed within a two-month period. 工作须於两月内完成. *
The incubation period (ie The delay between catching a disease and the symptoms appearing) is two weeks. 该疾病的潜伏期为两星期. 用法:
2
(a) portion of time in the life of a person, nation or civilization （人、 国家、 文明的）时期, 时代:
a painting belonging to the artist's early period 该画家早期的画 *
the period of the French Revolution 法国大革命时期 *
the post-war period 战後时期 *
The house is 18th century and has furniture of the period, ie of the same century. 那房子是18世纪的, 而且还有那时代的家具. *
The actors wore costumes of the period, ie of the time when the events of the play took place. 演员穿著剧中时代的服装. *
[usu attrib 通常作定语] period dress, furniture, etc 某时代的服装、 家具等 *
a period cottage, ie not modern 某时代的村舍.
(b) (geology 地质) portion of time in the development of the earth's surface 纪:
the Jurassic period 侏罗纪. 用法:
3 (time allowed for a) lesson in school （学校的）课, 课时, 学时:
a teaching period of 45 minutes 45分钟的一堂课 *
a free period 没课的一节 *
three periods of geography a week 每周三节地理课. 用法:
4 (a) monthly flow of blood from the womb of a woman; menstruation 月经:
have a period 来月经 *
[attrib 作定语] period pains 月经痛.
(b) time of this 月经期. 用法:
5 (esp US) (a) = full stop (full).
(b) sign of punctuation (.) marking this in writing and print 句号. =>App 3 见附录3.
(C) (infml) (added to the end of a statement to stress its completeness 加於一段话之後以强调完毕):
We can't pay higher wages, period, ie that is final. 我们不能付再高的工资了, 话就说到这里. 用法:
6 (grammar) complete sentence, esp one having several clauses 完全句（尤指有几个分句者）. 用法:
7 (astronomy 天) time taken to complete one revolution 周期. |