英语翻译Concrete sets ,or hardens ,into a dense,stonelike substa
英语翻译
Concrete sets ,or hardens ,into a dense,stonelike substance.Unlike stone ,however,it does not have be cut and shaped into individual blocks that are then fitted together to make a wall.Instead ,it can be poured into woooden forms to make solid,one piece structures of almost any shape.
Concrete sets ,or hardens ,into a dense,stonelike substance.Unlike stone ,however,it does not have be cut and shaped into individual blocks that are then fitted together to make a wall.Instead ,it can be poured into woooden forms to make solid,one piece structures of almost any shape.
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