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破折号 dash  语法学术语。一种标点符号,书写形式为“—”,比连字号长(英语中占一个汉字的长度,中文里占两个汉字的长度),用以表示思维的突然中断、分割成分或解释说明。例如:[1]He's running for reelection — if he lives until then. [2]Very few people in this class — three, to be exact — have completed their projects. [3]She joined the chorus for only one reason — she loves to sing. 在最后一个句子中,当破折号用于句末,而不是句子中间时,可以由冒号代替破折号的功能。


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