coitus
n. <拉>(尤指人类的)交媾,性交; 交配
Coitus is sexual intercourse.
1. the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur
The intimate contact of the female sex organs during coitus can give both partners great pleasure.
在性交合过程中,男女性器官的密切接触能够给双方带来愉悦.
Still, some couples may hesitate to engage in coitus because of aesthetic objections to the bleeding.
尽管如此, 一些夫妇因为对经血的审美异议而不愿(在月经期)参与性交.
Pregnancy can also be avoided from coitus while engaging in all other forms of sexual intercourse.
当投入所有其他形式的性行为时,避免性交也能够避孕.
This, in turn, has increased their enjoyment of coitus.
继而, 这又增添了他们性交合的乐趣.
The physiological significance of change of sex steroid levels after coitus will obviously require further investigation.
性交后性腺激素变化的意义有待进一步研究.