1
during [det] historic period
det常为the或a
During the historic period, trade flourished.
在历史时期，贸易繁荣。
历史时代
先理解核心含义，再看它在真实句子里的用法。
历史时代
a period of time in history
During the historic period, trade flourished.
在历史时期，贸易繁荣。
The Renaissance was a historic period of great cultural change.
文艺复兴是一个文化巨变的历史时代。
Historians often debate which historic period marked the beginning of globalization.
历史学家经常争论哪个历史时代标志着全球化的开始。
Living through a historic period can make people feel both excited and anxious.
经历一个历史时代会让人们既感到兴奋又感到焦虑。
det常为the或a
During the historic period, trade flourished.
在历史时期，贸易繁荣。
The Renaissance was a historic period of innovation.
文艺复兴是一个创新的历史时期。
In this historic period, many inventions were made.
在这个历史时期，许多发明被创造出来。
Not this
Historic period is important.
Use this
A historic period is important.
作为可数名词短语，'historic period' 前需要不定冠词 'a' 来表示泛指。
Not this
We are studying a history period.
Use this
We are studying a historic period.
这里需要用形容词 'historic' 来修饰 'period'，而不是名词 'history'。
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Dictionary facts from ECDICT.