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单词
underground railroad
释义
underground railroad
noun
1.
:
underground railway
2.
usually capitalized U&R
:
a system of cooperation among active antislavery people in the United States before 1863 by which fugitive slaves were secretly helped to reach the North or Canada
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calchaquian
calci-
calci
calcic
calcicoater
calcicole
calcicolous
calcicosis
calciferol
calciferous
calciferous
calciferous gland
calcific
calcification
calcifuge
calcifugous
calcify
calcilutite
calcilutyte
calcimeter
calcimine
calciminer
calcinate
calcination
calcine
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更新时间:2026/1/21 10:58:34