period

Tomorrow’s weather will be dry with sunny periods..明天天气干燥，间或晴朗。

The drug was tested over a five-week period..那种药品进行了为期五周的试验。

They adopted the system for a trial period (= time in which something is tested to see if it works well ) ..那套系统他们试用了一段时间。

period of time,一段时间；时段

long period,长期的；长周期

short period,adj. 短周期的；短过期的

transition period,过渡时期

construction period,施工期

time period,时期，期间

development period,n. 发展期；发育期；开发期

of the period,当时

growth period,生长期；成长期；发育期

spring and autumn period,春秋时代

warring states period,战国时代

corresponding period,同期

in period,在周期内

production period,生产周期；生产期

storage period,保藏期，储存期；贮藏期；蓄水期

initial period,初始期

operation period,经营期限

first period,比赛的第一节

current period,[经]本期

peak period,波峰周期；尖峰期