In fact, levels of testosterone are much lower in the evening and peak at 8 AM. While semen quality is best in the afternoon with 35 x106 more spermatozoa per ejaculation.

事实上，睾丸激素释放在晚上要低得多，却在早上8点达到峰值。而精液质量最好时间是下午，每次射精增加35×106个精子。

Here the male urethral sphincter contracts to make sure urine doesn't mix with semen.

在，性尿道括约肌收缩以确保尿液不会与精液混合。

These measures prevent people from exchanging blood or semen, which is how HIV commonly spreads.

些措施使得人们无法交换血液或精液，因为是艾滋病毒常见传播方式。

There is even another story of Thoth's birth; in " The Contendings of Horus and Set" , he is created from the semen of Horus, which was then accidentally swallowed by Set, and then he was born from Set's forehead.

甚至还有一个关于托特出生故事；在《荷鲁斯与赛特之争》中，他是由荷鲁斯精液创造出来，荷鲁斯精液被赛特意外吞下，然后他就从赛特额头上出生了。

South African officials have been slow to grant a permit to export the semen to America simply because they have never done it before, according to Barbara Baker, the president of the Pittsburgh Zoo.

匹兹动物园园长芭巴拉? 贝克说，南非官方迟迟未批准向美国出口大象精子，原因仅仅 是他们从没做过样事。

Those on short-term organic diets do show higher levels of carotenoids, polyphenols, Vitamin C and E, LDL cholesterol, antioxidant activity, immune system markers, and ever higher semen quality.

那些短期内食用有机食品人确实体内含有更多类胡萝卜素、多酚、维生素 C 和 E、低密度脂蛋白胆固醇、抗氧化活性、免疫统标记，以及更高精液质量。

In the very next sentence however the observed association between higher ssb intake and lower semen quality does not necessarily imply a decrease in fertility.

然而在下一句话中，观察到高SSB摄入量和低精液质量之间并不一定意味着生育能力下降。

Previous research suggests Ebola can stay in semen for at least three months after recovery from the virus. Tulip Mazumdar reports from Freetown.

之前研究表明在患者康复后，埃博拉病毒仍能在精子存活至少三个月。马祖达在弗敦报道。

Since the virus can remain inside of a man's semen over a year after recovery, it could be spread sexually.

由于该病毒在康复后可以在性精液中停留一年以上，因此它可能会通过性传播。

The researchers took semen samples from nearly 100 men in Sierra Leone who recovered from the disease.

研究人员从塞拉利昂近100名感染埃博拉疫情后康复性体内提取了精子样本。

There is a catch, though: artificial insemination in African elephants with semen that has been frozen, as opposed to the fresh stuff, has not so far been done successfully.

到目前为止，用事先冷冻精子（而非新鲜精子）为非洲象进 行人工授精尝试都失败了。

And one more thing in this paragraph, the researcher's goal was to understand the effects of sweetened beverages on semen quality and reproductive hormone levels.

在段话中还有一点，研究者目标是了解加糖饮料对精液质量和生殖激素水平影响。

This stuff contains mainly citric acid and an enzyme cocktail that help keeps semen liquified -- and thus easier to move and swim through.

些分泌物主要含有柠檬酸和一种混合酶，有助于保持精液液化，从而更容易移动和游泳。

We have worked hard on semen testing, behavioral counseling, safe sex promotion and research.

我们在精液检测、行为咨询、安全性行为促进和研究方面付出了努力。

They have long offered help with child care Bosch and semens and other industrial giant.

他们长期以来一直提供育儿帮助，博世和西门子等工业巨头也是如此。

When did you start getting curious about semen retention?

你是什么时候开始对禁欲（保留精液）产生好奇？

There was that bull semen hair treatment.

还有那种用公牛精液做头发护理疗法。

So there's an idea that women have semen like men do.

所以有一种观点认为，女性也像性一样有精液。

This seemed connected to the stated purpose of the experiment to confer immunity to HIV infection on the embryos even though IVF involving HIV positive men involves washing the virus out of their semen and the risk of infecting.

似乎与实验声称目有关，即赋予胚胎对艾滋病病毒感染免疫力，尽管涉及艾滋病病毒阳性性体外受精过程包括清洗掉精液中病毒并降低感染风险。

But I started it just with, again, I mean, I just wanted to breed my personal dog with some cool semen from a dog that we couldn't get our hands on, and it worked, and it was pretty cool.

但我刚开始只是想用一些我们弄不到酷狗精液来繁殖我个人宠物狗，结果成功了，还挺酷。