看看科学是怎么说的: How Many Genders Are There According to Science:
It’s a common misconception that there are only two genders: male and female. But science proves there is actually more. Contrary to sex, gender isn’t binary. It’s fluid and ever-changing, which means that there are an endless number of possibilities.
学校要开除那个反对男孩使用女厕所的学生,家长不干了