详求period 的用法有没人告诉小弟一下period这个单词怎么用?巨谢!

时期和时段的意思： a period of time, the period of xxx
月经： She missed her period
句号，表示你个人的话讲完了，而且没得商量： You are going back home, period!

1. 时期,期间
This was the most difficult period of his life.
这是他一生中最艰难的时期.
2. 时代
The period of the Civil War
美国南北战争年代
3. (一堂)课,课时
We have four periods of English a week.
我们每星期上四节英语课.
The period of adolescence is very important in forming one's character.
青春期对人的性格形成是非常重要的.
--
He excels all other composers of his period.
他超过了同时期的所有其他作曲家.
--
She has a detailed knowledge of this period.
她对这段时期的情况了解地相当详细.
--
The Tang Dynasty is a period remarkable for its liberality.
唐朝是一段以开明著称的时期.
--
Teenage is the period at which the body reaches maturity.
青少年是身体成熟期.
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Last year was a prolific period in the composer's life.
去年是作曲家一生中创作丰收的时期.
--
It was a period of innovation.
这是革新时期.
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He was taken on for a three-month trial period before being accepted as a permanent member of staff.
在她被接受为固定雇员之前经过了三个月的试用期.