sex

性；性别；性行为；色情英释nnthe physical activity that two people do together in order to produce babies, or for pleasure

引起…的性欲；区别…的性别英释vvto find out whether an animal is male or female

1 sex education,性教育

2 have sex,性交

3 opposite sex,异性

4 sex life,n. 性生活

5 have sex with,与…性交

6 sex ratio,男女人口比例

7 sex appeal,性感；吸引力

8 sex hormone,n. [生化]性激素

9 sex discrimination,性别歧视；雌雄鉴别

10 sex change,变性，变性手术

11 oral sex,口交

12 sex difference,性别差异；两性差别；性的差别

13 safe sex,安全性行为（通常特别指利用避孕套来避免受爱滋病等传播）

14 sex determination,性别决定；性决定

15 fair sex,女性；妇女

16 sex scandal,性丑闻；桃色新闻

17 sex role,性别角色

18 sex drive,性欲；性驱力；性冲动

19 unprotected sex,不安全性行为

20 sex organ,性器官

1 All you see on TV is sex and violence these days..如今在电视上看到的尽是性和暴力。

2 They had sex in the back seat of his car..他们在他的汽车后座上做了爱。

3 She no longer wanted to have sex with him..她再也不想和他做爱了。

4 the dangers of casual sex.性关系随便的危险性