But they are part of a revolution in building design: There are no drafts, no cold tile floors, no snuggling under blankets until the furnace kicks in.

• 不过它们在建筑设计革命中占有一席之地：它既没有通风口，也没有冰冷的磁砖地板，也不至于在打开暖炉前，让人冷得瑟缩蜷伏在毛毯下。