名词
中文翻译：无头钉
同义词：
['nail', 'headless screw']
例句：
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1.The carpenter used a headless nail to hang the picture on the wall.
木匠用一个无头钉把画挂在墙上。
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2.The construction worker was using a headless nail to secure the wooden beams.
建筑工人正在用一个无头钉来固定木梁。
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3. The engineer tested the strength of the headless nail before installing it in the building.
工程师在安装这个无头钉之前测试了它的强度。