名词
中文翻译：圆头钻头
同义词：
['round-headed drill', 'round-headed boring machine']
例句：
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1. The engineerused a roundheaded borer to make the hole in the wall.
工程师使用圆头钻头在墙上打了一个洞。
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2. The roundheaded borer was used to remove the old paint from the walls.
圆头钻头被用来去除墙壁上的旧油漆。
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3. The roundheaded borer was a useful tool for carpenters who needed to drill holes in wood.
圆头钻头是木匠们钻孔的好工具，他们需要用它来在木头上钻孔。