coitus

The vagina receives the penis during coitus.

阴道在性交过程中容纳阴茎.

The most obvious and most reliable way of avoiding pregnancy is complete abstinence from coitus.

避免怀孕最显而易见和最可靠的方法是禁绝性交.

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.

Attention should be paid to the gistory of unclean coitus or uterine cavity operation.

因此,在诊断感染性疾病时应注意近期不洁同房史或宫腔手术史.

They must, therefore, be inserted 10 to 15 minutes before each coitus.

所以, 每次性交前10-15分钟就必须放入阴道内.

They may attempt coitus with calves, ponies, sheep, pigs, dogs, and even ducks or chickens.

他们可能尝试与小母牛 、 小马驹 、 绵羊 、 猪 、 狗 、 甚至与鸭或鸡交媾.

This is not only ineffective, but may also interfere with coitus and cause discomfort.

这种做法不仅无效, 而且也可能干扰性交和导致不适.

Reaching orgasm shortly after the beginning of coitus is a common female dysfunction.

性交开始不久后就达到性高潮是女性常见的性功能障碍.

During sexual excitement, these walls secrete a watery substance which serves as a lubricant coitus.

在性兴奋期, 阴道壁分泌水样液体,以备性交时润滑的需要.

Unfortunately, many men and women diminish their enjoyment of coitus by an overconcern with orgasm.

遗憾的是, 许多男女因过度关注性高潮而降低了性交合的乐趣.

Most often, sexual dysfunctions are defined in relation to the ability to perform or enjoy coitus.

极为常见的是, 性功能障碍被定义为关乎进行或享受性交(阴道性交译者注)的能力.

Their meeting is usually about as a result of coitus.

精卵相遇通常是性交的结果.

I just employed the most ancient form of Coitus Interruptus, as the Romans called it.

我刚才使用最古老的避孕法, 那就是古代罗马人所称的**中断法.