为什么连字号用于复制构造函数？
这俩部分通过两个连字号(“——”)分开。
文字会根据标准文法规则断字并加上连字号。
Words are broken and hyphenated according to standard grammar rules.
破折号比连字号长。
很多时，配合精细的排字要求，就用它来代替连字号。
Used to take the place of hyphen in many occasions when finer typography is required.
MAC地址里每个字节都用冒号(：)或连字号(-)分开。
Each byte in a MAC address is separated by either a colon (:) or a hyphen (-).
大麻烦打着小包来，比如：逗号、上撇号、问号和连字号。
Big trouble comes in small packages: commas, apostrophes, quotation marks, and hyphens.
这样标题中会出现单一连字号，且不会在字元中加上底线。
A single ampersand is displayed in the caption and no characters are underlined.
某些共同表达含意的单词对需要加连字号，以强调其相互间的联系。
Some pairs of words that work closely together are hyphenated to emphasize their relationship with each other.
DB 2SQL-我怎么能代替连字号当我的case语句的结果是空的没有显示？
DB2 SQL - How can I display nothing instead of a hyphen when the result of my case statement is NULL?
命令选项：命令通常接受选项或者参数，这些选项和字符以一个连字号开始，挨次给出。
Command options: Commands usually accept options or parameters, which are given in a sequence beginning with a hyphen (-).
第二个tar命令从stdin读取归档文件并进行展开，展开(x)选项后面使用的连字号表示stdin。
The second tar reads an archive from stdin and expands it in place; the hyphen used with the extract (x) option refers to stdin.
词条al(阿拉)可以写为el(艾拉)，它可以直接通过使用连字号或空格与人的姓氏写在一起，或省掉不写。
The article al (also written as el) may be attached to surnames directly, separated from surnames with a hyphen or a space, or omitted altogether.
词条al(阿拉)可以写为el(艾拉)，它可以直接通过使用连字号或空格与人的姓氏写在一起，或省掉不写。
The article al (also written as el) may be attached to surnames directly, separated from surnames with a hyphen or a space, or omitted altogether.
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