意思：
糅合黏土做成器具，正因为中间是空的，所以才有器具的作用。凿了门窗盖成一个房子，正因为中间是空的，才有房子的作用。
英译：
Mix clay utensils, because the middle is empty, so we implement effect. Carveddoors and windows cover into a house, because the middle is empty, have thefunction of the house.
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