en dash

基本解释

When you use – in your document, it's replaced by Unicode character U+2013, the en dash (-) character.
我們在文档中使用 – 時，它由 Unicode 字符 U+2013（短橫線 - 字符）替代。
Because the replacement text for – is a character reference, it's exactly the same as typing an en dash character.
由於 – 的替代文本是一個字符引用，因此它等同於輸入一個短橫線字符。
Most fonts are equipped with at least two dashes: an en dash (–, –, which is the width of a lowercase “n”) and an em dash (—, —, which is the width of a lowercase “m”).
大多數字躰都擁有二種不同的橫線破折號：en橫線(–, –,相儅於小寫的“n”的寬度) 以及一個em橫線（—, —,寬度相儅於小寫的“m”）。

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a short dash (= the symbol - ), used especially when typing on a computer or in printing to separate numbers