名词
中文翻译：开凿机器同义词
同义词：
['excavator', 'drill', 'jackhammer']
例句：
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1. The construction crew used a large excavator to dig the foundation for the new building.
建筑工人使用一台大型挖掘机为新大楼挖掘地基。
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2. The jackhammer was used to break through the concrete wall.
用冲击钻打破了混凝土墙。
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3. The excavator is essential for clearing away debris during construction.
挖掘机在建设过程中清除杂物至关重要。