A few simple shapes are the irreducible forms from which all of the patterns are generated.一些简单的形状不可简化，所有图案都是由这些形状构成的。The alliance between the two parties is irreducible.这两党之间的联盟是不会削弱的。They thought the world was made up of four irreducible elements: earth, air, fire, and water.他们认为世界是由土壤、空气、火和水四种基本元素组成的。