| 词组 | period |
| 释义 | period AC /ˈpɪəriəd $ ˈpɪr-/ noun [C] a particular length of time with a beginning and an endadjectives/nouns + perioda long/lengthy period The couple had to spend long periods apart.a short/brief period He worked for a short period in Manchester.a prolonged period (=continuing for a long time) If you experience the symptoms for a prolonged period, see your doctor.a limited period (=a fairly short length of time) From May, the castle will be open to the public for a limited period.a fixed/set period (=one that will not be changed) A tourist visa allows you to stay in the country 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 also a period of six months/five years etc The drug was tested over a five-year period.a time period The loan must be paid back over a certain time period.a trial period (=when you use someone or something for a short time, to find out if they are suitable) The system was introduced for a trial period. | The former Chelsea player has joined Manchester United for a three-month trial period.the peak period BrE (=the time when the greatest number of people are doing or using something) The peak period for visitors is in the summer.off-peak periods BrE (=the times when fewer people are doing or using something) Fares during off-peak periods are much cheaper.a cooling-off period BrE (=during which someone can change their mind about buying an insurance policy or accepting credit) The customer’s cooling-off period does not expire until the end of seven days following the acceptance.prepositionsa period of sth There will be short periods of rain during the day.phrasesa period of time His English has improved in a very short period of time.a period of the year Christmas is a busy period of the year for us.sb’s period in office (=the time when someone has an important job) Throughout his period in office, the president supported welfare reform.THESAURUS: perioda period in history 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: We are now in the age of the internet. | the Stone Age (=when people used tools made of stone) | the industrial age | the nuclear age era a long period that has a particular character or that is marked by particular events: We live in an era of breathtaking change. | De Gaulle’s death marked the end of an era. | the post-war era (=the period after the war) | The house belongs to another era, when people had dozens of servants to look after them. epoch /ˈiːpɒk $ ˈepək/ formal means the same as era, but sounds more formal and important: We are now entering a new epoch in human history. | It was the end of an epoch. | the colonial epoch |
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