sex ratio性别比;性比;性比率;性比例
sex chromosome性染色体;染色体
Sex Drive破处之旅;性冲动;性爱之旅;性动力
sex determination性别决定;性决定;性别决定通过遗传或环境的作用使个体建立性别的过程;性别鉴定
sex role性别角色;性角色;性别作用
sex appeal性感;性感度;吸引力;性的魅力
sex difference性别差异;性的差别;两性差别;性差异
cyber sex虚拟性爱;电车魔女;网络性爱;网上性爱
sex manual房中术
There’s no age or sex differences between groups,which keeps a good balance.2.
两组年龄和性别构成差异无统计学意义,资料均衡性较好。
参考来源 - 阿尔茨海默病患者营养状况及人体成分研究N-COUNT（可数名词） 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。
（） → see also opposite sex
N-COUNT（可数名词） 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。
N-UNCOUNT（不可数名词） 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。
PHRASE（习语） 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？