sex

1. N-COUNT The two sexes are the two groups, male and female, into which people and animals are divided according to the function they have in producing young. (雌、雄、男、女) 性

...a movie star who appeals to all ages and both sexes. …一个吸引男女老少的电影明星。

2. →see also opposite sex

3. N-COUNT The sex of a person or animal is their characteristic of being either male or female. 性别

She continually failed to gain promotion because of her sex. 由于性别的原因，她频频得不到升职。

The new technique has been used to identify the sex of fetuses. 这项新技术已被用来鉴定胎儿的性别。

4. N-UNCOUNT Sex is the physical activity by which people can produce young. 性行为

He was very open in his attitudes about sex. 他对性的态度很开放。

The entire film revolves around drugs, sex and violence. 整部电影都围绕着毒品、色情和暴力展开。

5. PHRASE If two people have sex, they perform the act of sex. 进行性交

Have you ever thought about having sex with someone other than your husband?

你想过与丈夫之外的人发生性关系吗？