Definition: a particular period of history Level: B2
数字革命定义了现代。
The digital revolution defines the ___modern ___age.
猛犸象生活在冰河时期。
The woolly mammoth lived during the ___Ice ___Age.
这种建筑风格在中世纪很常见。
This architectural style was common in the ___Middle ___Ages.
