雅思作文21篇 The process by whick bricks are manufactured for the building industry can be outlined in seven consecutive steps.First the raw material, clay which was just below the surface of soil in certain clay-rich areas has to be dug up by a digger.
雅思作文21篇 The process by whick bricks are manufactured for the building industry can be outlined in seven consecutive steps.First the raw material, clay which was just below the surface of soil in certain clay-rich areas has to be dug up by a digger.
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