兩性特征,兩性人
However, a minority are erotically attracted to both men and women ( ambisexuality ), and an even smaller minority are attracted mainly to partners of their own sex ( homosexuality ). 人們在性的層級上是異性戀或同性戀，這就表明他們被另一性的性伴所性吸引或被同性所性吸引。大多數(shù)個體發(fā)展成明顯的對另一性的性伴有性喜好（異性戀）。
