名词
中文翻译：保持柱
同义词：
['supporting column', 'retaining wall']
例句：
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1. Theengineer designed a retaining column to supportthe weight of the building.
工程师设计了一个支撑建筑物重量的保持柱。
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2. The retaining column was made of steel and hadto be reinforced with concrete.
这个保持柱是用钢制造的，需要用混凝土加固。
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3. Theretaining column was used toprevent the soil from shifting during construction.
这个保持柱用于防止施工期间土壤移位。