牛津逗號

在英語書寫中，連續逗號（又稱牛津逗號、哈佛逗號）^[1][2]是指在三個或更多的名詞中，在倒數第二個名詞之後添加逗號。例如有三個國家可能以這樣的方式寫下 "法國，意大利和西班牙"（France, Italy and Spain），此時沒有連續逗號，而當寫成 "法國，意大利，和西班牙"（France, Italy, and Spain）時，意大利後面那個逗號就是連續逗號^[3][4][5]。

人們對於是否要使用連續逗號有不同的看法，不同地區英語的用法也有所不同。英國英語對牛津逗號沒有強制要求， ^[6]而在美國英語中，牛津逗號比較常見，有時甚至要強制使用牛津逗號。^[7]牛津風格手冊（英語：Hart's Rules）就建議大家使用牛津逗號，而牛津逗號名稱也是來自於此。 ^[8]

參考文獻

1. Garner, Bryan A. Garner's Modern English Usage. 牛津大學出版社. 2016: 748. ISBN 978-0-19-049148-2.
2. Upadhyay, Abhishek. Serial comma - Oxford comma - Harvard comma. Writers' Mentor. [2022-02-04]. （原始內容存檔於2019-01-16）.
3. The terms Oxford comma and Harvard comma come from 牛津大學出版社 and 哈佛大學出版社, where serial-comma use is the 格式指南.
4. The serial comma sometimes refers to any of the separator commas in a list, but this is a rare, old-fashioned usage. Herein, the term is used only as defined above.
5. Sometimes, the term also denotes the comma that might come before etc. at the end of a list (see the Australian Government Publishing Service's Style Manual for Authors, Editors, and Printers, below). Such an extension is reasonable, since etc. is the abbreviation of the Latin phrase et cetera (lit. and other things).
6. Truss, Lynn. Eats, Shoots & Leaves: The Zero Tolerance Approach to Punctuation. New York: Gotham Books（英語：Gotham Books）. 2004: 84. ISBN 1-59240-087-6.
7. Much Ado about Commas | UC Geography. geog.ucsb.edu. [2018-12-21]. （原始內容存檔於2018-12-21）.
8. The Oxford Style Manual, 2002: "The presence or lack of a comma before and or or ... has become the subject of much spirited debate. For a century it has been part of OUP style ..., to the extent that the convention has come to be called the 'Oxford comma'. But it is commonly used by many other publishers here and abroad, and forms a routine part of style in US and Canadian English" (p. 121).