pe‧ri‧od 1 S1 W1 AC / pɪəriəd $ pɪr- / 名词 [可数名词]
1 length of time a particular length of time with a beginning and an end :
Tomorrow’s weather will be dry with sunny periods.
period of
His playing improved in a very short period of time .
a brief period of silence
The drug was tested over a five-week period.
They adopted the system for a trial period (= time in which something is tested to see if it works well ) .
2 life/history a particular time in someone’s life or in history → era :
the conflict of the Cold War period
Van Gogh’s early period
the Jurassic period
the behaviour of children during the period of adolescence
3 blood the flow of blood that comes from a woman’s body each month → menstrual period :
I was 12 years old when I started my periods .
4 mark American English the mark (.) used in writing to show the end of a sentence or of an abbreviation 同义词 full stop British English
5 school one of the equal parts that the school day is divided into 同义词 lesson British English :
What class do you have first period?
period of
a double period of Science
6 sports one of the equal parts that a game is divided into in a sport such as ice hockey :
The Bruins scored twice in the first period.
7 for emphasis period! American English spoken used to emphasize that you have made a decision and that you do not want to discuss the subject any more 同义词 full stop! :
I’m not going, period!
COLLOCATIONS
ADJECTIVES/NOUN + period
a long/lengthy period They had to spend long periods apart.
a short/brief period He lived for a short period in Manchester.
a limited period (= a fairly short length of time ) From May, the site will be open to the public for a limited period.
a fixed/set period (= that will not be changed ) A tourist visa allows you to stay for a fixed period.
an indefinite period (= with no fixed end ) The painting had been loaned to the gallery for an indefinite period.
a six month/five year etc period They studied the behaviour of the ocean during a five year period.
a trial period (= a time in which you try something to see if it is good ) We could introduce the system for a trial period.
短语
a period of time Over a period of time, this pressure can damage the fibres of the carpet.
THESAURUS
a period in history
period a particular time in history, especially one studied as a subject : the late Victorian period | the interwar period | During that period many people moved from the countryside to the towns.
time a period of years, months, days etc : The 1960s were a time of great social change. | the biggest earthquake in modern times | Verdun was an important city in Roman times.
age a long period, especially one that represents a particular stage in the development of civilization or technology : the industrial age | We are now in the age of the Internet. | the Stone Age (= when people used tools made of stone )
era a long period that has a particular character or that is marked by particular events : We live in an era of breathtaking change. | the post-war era | De Gaulle’s death marked the end of an era .
epoch / ipɒk $ epək / formal means the same as era , but sounds more formal and important : We are now entering a new epoch in human history. | the colonial epoch | It was the end of an epoch .