adj.直径的...

He's the diametrical opposite of his brother.他和他的弟弟截然不同。...

diametrical的音标：diametrical的英式发音音标为：[ˌdaɪə'metrɪkl]diametrical的美式发音音标为：[ˌdaɪə'mɛtrɪkəl]...