查询词典 intercourse

For example, many people use condoms when they are engaging in vaginal or anal intercourse but not when they are participating in oral sex or fellatio.

举个例子，许多人只有在性交或肛交时使用安全套，而在参与口交时并不使用。

A flagellum propels the sperm, which may live in a woman's reproductive tract for two to three days after sexual intercourse, to the egg.

鞭毛约长50公忽，推动精子前进至卵子处，进入女性生殖道的精子在性交后可存活2～3天。

"A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse."

"通常由薄橡皮膜制成的套在子宫颈上的帽，以避免性交过程中精子的进入。"

A contraceptive device consisting of a thin flexible disk, usually made of rubber, that is designed to cover the uterine cervix to prevent the entry of sperm during sexual intercourse.

子宫帽避孕套通常由薄橡皮膜制成的套在子宫颈上的帽，以避免性交过程中精子的进入

Sexual behaviors that occur during sleep range from simple moaning to fondling to outright intercourse, scientists say.

专家说，发生在睡梦中的性行为从简单的呻吟、抚摸到直接的性行为。

Sexual life crosses frequency, sexual intercourse to be forced to interrupt, or overmuch masturbation, can make prostate congests out of order.

性前列腺炎越来越困扰着男士们，其发病率高、发病时间长，且近年呈现年轻化的趋势，这都促使医学界加紧研究：前列腺炎的病因到底是什么？

When they're engaged in foreplay and intercourse, it can take 20 minutes.

当他们在性交前之爱抚和性交，这可能需要20分钟。

But he said prior research has shown that both men and women want foreplay and sexual intercourse to last longer.

但他说，以前的研究显示，男人和女人都想要前戏和性交上持续更长的时间。

Sexual intercourse after the prone position, so that semen in the vagina before having plot fornix.

2性交后俯卧，使精液矣积在阴道前穹窿。

Sexual intercourse after the prone position, so that accumulation of semen in the vagina before the fornix, the same bend of the cervix so sperm injection in the Medium immersion.

2性交后俯卧，使精液聚积在阴道前穹窿，同样使上翘的宫颈浸泡在精注中。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。