性交

Dr. Kiser and colleagues describe a temperature and pH sensitie polymer that was chosen as a potential bioresponsie microbicidal ehicle engineered to gie semen-triggered drug release and efficient coating and retention prior to intercourse.

Kiser博士及其同事描述说，一种对温度和pH敏感的聚合物用作杀菌药物的载体，设计成通过精子触发药物释放，并且在性交前能有效地包被药物和保持药物活性。

I suppose it wasnt great for her either - I wasnt practised in pleasuring members of the fairer sex.

我假定这性交对她来说也不怎么样——我也好久没沾女人，不知怎样讨女人的欢心。

I suppose it wasn't great for her either - I wasn't practised in pleasuring members of the fairer sex.

我假定这性交对她来说也不怎么样——我也好久没沾女人，不知怎样讨女人的欢心。

More plausibly, as the economist Joseph Sabia suggests in a forthcoming article,"if the realised benefits of sexual intercourse are higher than the ex ante anticipated benefits, adolescents may substitute time and energy away from investments in human capital and towards investments in future obtainment of sex."

更加看似有道理的一点在于——正如经济学家约瑟夫·萨比亚在一篇即将发表的文章中所写的那样：&如果性交的实际收益高于事先的预期收益，青少年会把在投入在人力资本方面的时间和精力，转而投向未来性生活的获得。&

It can cause sequelae such as ectopic gestation, sterility, chronic pelic pain, salpingian dropsy, tubooarian cyst and chronic dyspareunia,which affect the female health greatly and increase the domestic and socioeconomic burden.

摘要研究背景：盆腔炎是育龄妇女常见病，多发病，一般认为3%的妇女在他们一生中患过，导致异位妊娠、不孕，慢性盆腔疼痛、输卵管积水、输卵管卵巢囊肿以及慢性性交困难等后遗症，严重影响妇女健康，且增加家庭及社会经济负担。

Two studies in Africa found that circumcise men had half the risk of getting HIV from sexed women as uncircumcised men had.

二个在非洲的研究发现经包皮切除手术的男人在与妇女性交时比没进行切除手术的男人感染HIV的风险少一半。

When you're tired,actin'tough You only take two and a quarter to get fucked up And when you say you're in love You just sond like you're giving up

当您很疲倦的时候，actin'tough 您只拿二和弦拿性交在而且当您说您在爱方面您公义的像您 sond 正在给在

And when you say you're in love You just sound like you're giving up When you're tired,actin'tough You only take two and a quarter to get fucked up And when you say you're in love You just sond like you're giving up Let's say it'll be a right,it'll be a risky bet Cause i'm about as good as i'm gonna get.

上面 而且当您说您在爱方面您刚好听起来像您一样正在给在当您很疲倦的时候，actin'tough 您只拿二和弦拿性交在而且当您说您在爱方面您公义的像您 sond 正在给在出租我们说它将会是一个权利，它将会是一个冒险的赌注引起本人是大约像本人要拿一样好。

Material and Method: This retrospective study investigated 212 couples, i.e., sexual partners, who visited our offices because of unconsummated coitus due to failure to penetrate the vagina, of them, 129 couples completed the full course of treatment and follow-up.

材料和方法：由212对因为阴道插入困难，导致无法完成性交而至我们门诊的伴侣中，其中有129对完成了完整疗程的评估及治疗，并且有完整的追踪及病例可以查阅。

It turns out that some species of the Whiptail lizard have figured out how to do this and completely eliminated the male sex.

结果是，现在已经发现一些鞭尾蜥蜴物种完全没有男性性交的情况下可以做到这些。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。