欧几里德几何的唯一性与必要性已被公认.The common conclusion was the uniqueness and necessity of Euclidean geometry.非 欧几里德几何实际上是从属于欧几里德几何的.The non - Euclidena geometries were in effect subordinated to Euclidean geometry.这种几何和Riemann几何的关系是不清...
That city literally produces all of the world's lighters and Christmas lightings.该市差不多产出地球上的所有打火机及圣诞灯饰.Babies'bootees and cheap cigarette lighters were displayed in unlikely juxtaposition.儿童的短靴和廉价的打火机很不相称地陈列在一起...