| 单词 | ketchall, ephraim |
| 释义 | Ketchall, EphraimKetchall, Ephraim(1788–1877) social scientist, geographer; born in Old Mystic, Conn. He made numerous explorations in the Mississippi Valley and Mexico, where he measured the size of pyramids and buildings. By using his figures as a measure of the advancement of nations, he had anticipated later archaeologists' ideas about the size of cities as a measure of their significance. |
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