Roman numerals

基本解释

It is no surprise because the mapping from Arabic to Roman numerals, and back again, is what is mathematically known as one-to-one and onto.
这之所以是毫无疑问的，是因为从阿拉伯数字映射到罗马数字，然后再映射回来，这在数学上称为是一对一的（one-to-one）和映成的（onto）关系。
The press history of Oxford University began a misprint: Mr. Rood forgot a Roman numeral X, which was mis-dated in Roman numerals as "1468".
牛津大学的出版史始于一个印刷错误：鲁德印刷的书中的罗马数字漏印了一个X，这样出版年代就错印成了 1468年。
If the element has a type attribute, use its value to figure out how the number of each list item should be formatted (Roman numerals, Arabic numerals, or alphabetic characters).
如果元素有 type 属性，则用这个值来决定应该如何格式化每个列表项的数字（罗马数字、阿拉伯数字或按字母次序的字符）。

Roman numerals appear to be an illogical hodgepodge to us, but they once efficiently complemented a counting board.
FORBES: Magazine Article
Roman numerals signal watch is to be worn with formal or business attire.
FORBES: The Face of Time