名词
中文翻译：Unknown
同义词：
['- square steel bar']
例句：
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1. The construction workersused the square iron bar to reinforce thewall.
建筑工人使用方铁条加固了墙壁。
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2. The square iron bar was used asa support for the roof.
方铁条被用作屋顶的支撑。
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3. The squareiron bar was strong enoughto hold up the heavy door.
方铁条足够坚固，能够支撑起沉重的门。