testing period试验周期，测试周期perioda. 某一时代(特有)的int. (用于句末,表示断定的口气)就这样,没什么好说的例句：I love him, period! 我爱他,就是这样!n.1. 时期, 时代, 期间2. [the period]现代, 当代3. 周期, 循环4. 学时, 课时, 节, (比赛的)一节时间5. [pl. ]月经期6. 句号; 终止, 结束7. 【语】整句(指复合句),【修】掉尾句8. [pl. ]美词华句, 华丽的词藻9. 【医】过程, 周期10. 【音】乐段11. 【地质】纪12. 【数】循环小数的循环节短语：for a period of time 一段时间; 一个时期the literature of the period 当代文学the period of French Revolution 法国大革命时期at stated periods 相隔一定时期, 在一定时期n.[C]1. 时期,期间The period of the Civil War美国南北战争年代This was the most difficult period of his life.这是他一生中最艰难的时期。

We have four periods of English a week.我们每星期上四节英语课。 例句：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。She'll be away for an indefinite period.她将离开一段时间，何时回来未定。We have three periods of chemistry a week.我们一星期三节化学课。She has a detailed knowledge of this period.她对这段时期的情况了解地相当详细。It was a period of innovation.这是革新时期。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。Which period of history are you studying 你正在学哪一段历史？He was on his feet again after such a long period in hospital.住院很长一段时间他复原了。