one of the letters used by the ancient Romans to represent numbers and still used today, in some situations. In this system I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1 000 and these letters are used in combinations to form other numbers. 罗马数字 Henry VIII 亨利八世 © BBC MMXIX (2019) BBC MMXIX (2019)
If further sub-divisions are required, small Roman numerals can be used. 如果需要进一步细分,可以使用小罗马数字。