By the time of Augustus, the so-called Alexandrian calendar had even incorporated an additional day for leap years.

到奥古斯都时期，“亚历山大历”甚至在闰年包含额外的一天。

youdao

By the time of Augustus, the so-called Alexandrian calendar had even incorporated an additional day for leap years.

到奥古斯都时期，“亚历山大历”甚至在闰年包含额外的一天。

youdao