名词
中文翻译：投石机
同义词：
['a catapult', 'a cannon']
例句：
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1.The trebuchet was used to launch heavy stones at enemy positions.
投石机被用来向敌人阵地发射重石。
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2.The ancient trebuchet was a marvel of engineering and technology.
古代的投石机是工程和科技的奇迹。
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3.The trebuchet was an important weapon in the medieval warfare.
投石机是中世纪战争的重要武器。