名词
中文翻译：剑
同义词：
['spear', 'blade', 'weapon']
例句：
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1. He drew his sword and charged into the enemy's camp.
他拔出剑，冲向敌人的营地。
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2. The knight wielded his sword with deadly precision.
那个骑士用剑挥舞得非常精准。
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3. The warrior used his sword to defend himself against the attackers.
战士用剑保护自己免受攻击者的攻击。