外博词典，懂英语单词快速记忆法的在线英语词典
常用短语
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在周期内
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当时
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一段时间，时段
更多词组短语 »
场景例句
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When did you last have a period?
你上一次月经是什么时候？
《牛津词典》
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It was a period of intense activity.
那是活动激烈的时期。
《牛津词典》
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The novel is set in the Roman period.
该小说的背景是罗马时期。
《柯林斯英汉双解大词典》
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同义词辨析
单词家谱
period 句号
英语的“句号”叫period或 fullstop.Period来逢希腊语的periodus，意思是“周期”，“循环”，period至今仍保留着这层意思。到了16世纪末，这个词则用来指任何动作的完成时刻，继而指一个句子的完结，或一句话后的停顿时间，最后才变成一个圆点，标志一个句子的结束。
period 时期，阶段，句号
来自希腊语periodos，圈，循环，来自peri-，在周围，hodos，上路，旅程，离开，词源同anode，method.引申词义时期，阶段，句号等。
period (n.)
early 15c., periode, "a course or extent of time; a cycle of recurrence of a disease," from Old French periode (14c.) and directly from Medieval Latin periodus "recurring portion, cycle," from Latin periodus "a complete sentence," also "cycle of the Greek games," from Greek periodos "cycle, circuit, period of time," literally "a going around," from peri "around" (see peri-) + hodos "a going, traveling, journey; a way, path, road," a word of uncertain origin (see Exodus).
Sense of "repeated cycle of events" led to that of "interval of time." From 1712 as "an indefinite part of any continued state or series of events;" by 1727 as "time in which a circuit or revolution (as of a heavenly body) is made." Sense of "episode of menstruation" is by 1829, probably short for period of menstruation (1808), etc.
The meaning "dot marking end of a sentence" is recorded c. 1600, from the earlier sense of "a complete sentence, from one full stop to another," then "a full pause at the end of a sentence" (1580s). The educational sense of "portion of time set apart for a lesson" is from 1876. The sporting sense "division of a game or contest" is attested by 1898. As an adjective from 1905; period piece is attested from 1911.
