In the 1820s the development of coiled springs fitted into mattresses revolutionized the Bed. In the Middle East Beds consisted of rugs piled up on the floor.是什么意思_In the 1820s the development of coiled springs fitted into mattresses revolutionized the Bed. In the Middle East Beds consisted of rugs piled up on the floor.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句