attitudes不是单数，attitudes是attitude的名词复数。

attitudes英 ['ætətjʊd]n.态度( attitude的名词复数 )；[戏剧]（表演时的）姿势；姿态；倾向双语例句：Attitudes to mental illness have shifted in recent years.最近几年对精神病的态度已有所改变。He was very open in his attitudes about sex.他对待性的态度非常开放。