性行为

In addition, many experimental designs in both research and clinical applications involve culture of matured oocytes prior to micromanipulation or insemination.

然而，人类和一些动物通常可以在发情周期的任何一天从事性行为，这可能导致排卵后老化的卵母细胞受精。

"Importantly, these patients had no safe sex," said Stanislas Pol, MD, PhD, from the Department of Hepatology at Necker Hospital, who presented the findings here at the 55th annual meeting of the American Association for the Study of Liver Diseases.

以上发表为Necker Hospital肝脏科医师Stanislas Pol医师在美国肝病协会的第55届年会中所提出；他并指出，重要的是，这些患者都进行了不安全的性行为。

I'm virgin! I never-never even done sex. I don't know how.

我是处女！我从来没有过性行为，所以我不知道怎么做。

The crowd numerary that size differs in considering to indicate money market trades the person's amount will have the most extensive general comfortable sexual behavior after new scale.

研究表明金融市场中不同大小的人群数目的交易人的数目在重新标度后将具有最广泛的普适性行为。

Call it the thrill of the new or the out-of-towner glow, but whatever the explanation, a simple change in scenery can snap people out of their crackling dry spell and morph them into human catnip.

我们可以称之为新的快感，或者是市外居民的"辉光"。但不管我们怎么解释，风景的简单的变化，会使人们在日常枯燥的节奏中得到振奋，并且改变人们的性行为。

The man and the wine boy are engaging in penetrative sex, a form of male eroticism condemned in Islam.

男人和酒侍郎在进行性交，这在伊斯兰教是受到谴责的男性性行为。

On premarital sex: I definitely don't think it's something you should do; it's better to wait.

对婚前性行为：我绝对不认为这是你应该做的，它的更好的等待。

Although we can't stop premarital sex, we can still make the most out of it.

尽管我们不能阻止婚前性行为，但是我们任然可以有效的利用它。

Third, non-male has premarital sex, should have the courage to say "no!"

第三，男方非有婚前性行为的，要敢于说"不！"

How to avoid premarital sex, it seems there is no way of really.

如何避免婚前性行为呢，似乎真的没有办法了。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。