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1.The steel troweling was used to smooth the surface of the concrete.
钢抹刀被用来平滑混凝土的表面。
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2. The steel troweling was used to remove the old paint from the walls.
钢抹刀被用来去除墙上的旧油漆。
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3.The steel troweling was used to level the ground for construction.
钢抹刀被用来平整土地以进行建设。