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词汇 dalton
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Dalton

1920 in reference to a plan or system of school education designed by Helen Parkhurst, from Dalton, Massachusetts, U.S., where it was first adopted. For Daltonism (a reference to English chemist John Dalton), see color-blindness. Daltonian, in reference to Dalton's work, is attested by 1813.

updated on June 25, 2018

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更新时间:2025/5/2 5:13:43