名词
中文翻译：战壕刀
同义词：
['knife', 'bayonet']
例句：
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1.He used a trench knife to cut through the thick mud.
他用战壕刀切穿了厚厚的泥。
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2. The soldier carried his trench knife in his backpack.
士兵把他的战壕刀放在他的背包里。
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3.In World War I, soldiers often used trench knives for self-defense.
在第一次世界大战中，士兵们经常用战壕刀进行自卫。