according to Cocker
词源说明
UK circa 1760. Eponymous of Edward Cocker (1631–1676), teacher and author of the popular mathematics textbook known as Cocker's Arithmetick (1678).
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UK circa 1760. Eponymous of Edward Cocker (1631–1676), teacher and author of the popular mathematics textbook known as Cocker's Arithmetick (1678).