Dates on or after 15th October 1582 are considered to be in the Gregorian calendar. Dates before this are considered to be in the Julian calendar.是什么意思_Dates on or after 15th October 1582 are considered to be in the Gregorian calendar. Dates before this are considered to be in the Julian calendar.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句