名词
中文翻译：壕沟
同义词：
['ditch', 'trenchcoat', 'tunnel']
例句：
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1.The soldiers dug a deep trench to protect themselves from the enemy's attack.
士兵们挖了一条深壕沟来保护自己免受敌人的攻击。
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2. He wore a trench coat to keep warm in the cold winter weather.
他在寒冷的冬天里穿着一件风衣保暖。
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3. The tunnel was so narrow that only one person could pass through at a time.
这个隧道太窄了，只能一个人通过。