“Battle of Guandu”的概念、定义、翻译、参考文献-科学参考

单词	Battle of Guandu
释义	Battle of Guandu Encyclopedia 历史学官渡之战释 Battle of Guandu官渡之战中国东汉建安五年（200）曹操与袁绍争夺中原霸权的关键战役。因交战于官渡（今河南中牟东北）而名。
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