ordinal number
复数形式
ordinal numbers
1
序数, 顺序数
a number that indicates the position of something in a sequence or series
An ordinal number is a number that indicates the position or rank of an item in a sequence. Ordinal numbers answer the question "which one?" and are used to describe the order of items rather than their quantity. Common examples of ordinal numbers include "first," "second," "third," and "twentieth." For instance, in the phrase "She finished in second place," the ordinal number "second" specifies the position she achieved in a competition. Ordinal numbers are important for organizing information, providing clarity about the arrangement of items, and conveying rankings or sequences in various contexts.
- "First" is an example of an ordinal number.
"第一"是序数的一个例子。
- The ordinal number "third" shows the runner's position in the race.
序数 "第三"显示了跑者在比赛中的位置。
- Use ordinal numbers when describing order, like "first place" or "second choice."
描述顺序时使用序数，如“第一名”或“第二选择”。
- The ordinal number helps clarify the sequence of events.
序数有助于澄清事件的顺序。
- The manual uses ordinal numbers to list the steps, starting with "first."
手册使用序数来列出步骤，从"第一"开始。