名詞 sex:

1. activities associated with sexual intercourse
   同義詞：sexual activity, sexual practice, sex activity
2. either of the two categories (male or female) into which most organisms are divided
3. all of the feelings resulting from the urge to gratify sexual impulses
   同義詞：sexual urge
4. the properties that distinguish organisms on the basis of their reproductive roles
   同義詞：gender, sexuality

動詞 sex:

1. stimulate sexually
   同義詞：arouse, excite, turn on, wind up
2. tell the sex (of young chickens)

1. There's lots of straight sex in the film, but nothing kinky.
   那部影片里有不少性行為鏡頭，但是沒有變態(tài)的。
2. He's got a one-track mind -- all he ever thinks about is sex!
   他只有一個心思--想的都是性事！
3. She's too inhibited to laugh at jokes about sex.
   她很拘謹，聽到性愛笑話也不笑。
4. The film is a rich brew of adventure, sex and comedy.
   這部電影是驚險、性愛及幽默的大雜燴。
5. Anyone can join the club, without respect to class, race, or sex.
   任何人，無論階級、種族或性別，都可以加入該俱樂部。
6. She disguised her true sex under a man's garment.
   她身穿男裝來掩飾自己的真實性別。