In pre-Classical Greece, for instance, people "corrected" official calendars by shifting dates forward or backward to reflect the change of season.
例如，在前古典时期的希腊，人们通过前后移动日期来“修正”官方日历，以反映季节的变化。
2
They became the greatest traders of the pre-classical world, and were the first people to establish a large colonial network.
他们成为前古典世界最伟大的商人，也是第一批建立庞大殖民网络的人。
3
As one of the best-preserved symbol documents, Oracle Bone Inscriptions have been considered crucial historical data in the field of pre-classical Chinese.