名词
中文翻译：树干钉
同义词：
['trunk nail', 'mainstay nail']
例句：
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1.The carpenter used a trunk nail to secure the wooden beams.
木匠用一个主干钉来固定木梁。
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2.The old tree was felled and its trunk nail removed for replanting.
老树被砍倒，其主干钉被移除以便重新种植。
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3.The carpenter used a trunk nail to secure the wooden beams.
木匠用一个主干钉来固定木梁。