n.性别( sex的名词复数 )；男性；性关系；性活动 双语释义：n.(名词)[U] 性别,性 condition of being male or female; gender[U] 性行为,性吸引,性感 activities that lead to and include sexual intercourse; mutual physical attraction between people[C] 男性；女性；雄性；雌性 either of the two groups that people,