Roman numerals are the letters used by the ancient Romans to represent numbers, for example I, IV, VIII, and XL, which represent 1, 4, 8, and 40. Roman numerals are still sometimes used today.
双语例句
例： 'VII', the Roman numeral for seven.
“VII”，罗马数字七。
例： The date was written in Roman numerals as MIIM for 1998.
此日期用罗马数字写为MIIM，即1998年。
例： a Roman numeral indicating the order in which the enzyme was discovered.
表明酶的发现顺序的罗马数字。