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(in the US) a secret network for helping slaves escape from the South to the North and Canada in the years before the American Civil War.
A secret network for helping slaves escape from the South to the North and to Canada in the years before the Civil War.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。