性交

控诉方称发生过数次性交。

The prosecution stated that intercourse had occurred on several occasions .

他们认为，性交主要是为了繁衍。

They believe that sex is primarily for procreation .

PaulWarambo解释了“性交”这个单词通常是如何从英语翻译成斯瓦希里语。

Paul Warambo explains how the term " sexual intercourse " is commonly translated from English into Ki'Swahili .

在阿姆斯特丹自由大学的“机器人婴儿项目”中，科学家已经研发出一种使机器人通过“性交”而将DNA传递给后代的办法。

In the Robot Baby Project at Vrije Universiteit Amsterdam , scientists have developed a way for robots to have ' sex ' and pass on their DNA to offspring .

20世纪80年代及90年代初期是艾滋病的发病高峰，那时即使是专家们也对应对HIV病毒知之甚少。这种病毒通常是通过共用针管或不卫生的性交方式造成传染。

Back in the disease 's terrifying heyday of the 1980s and early ' 90s , even experts knew precious little about how to treat HIV , which is usually transmitted through unprotected anal or vaginal sex or by sharing drug needles .

“CROS”的正式名称是“反射性交感神经营养障碍”，它是一种终身的系统疾病，表现为灼烧样剧烈疼痛，骨骼皮肤的改变，还有对触摸呈现难以置信的敏感。

Formally known as " reflex sympathetic dystrophy , " CRPS is a lifelong systemic disease which manifests itself as extreme burning pain , bone and skin changes , and unbelievable sensitivity to touch .

而动物的性交是传宗接代的，是生物的，是一种自然的天性。

It 's the pivot , it 's biology , it 's the natural instinct .

他说，脊髓组织也许是“学习如何性交的单行道”，一旦被使用过，它们就不再被需要。

He said that the spines may serve as a " one-way road to learn how to mate " and once used they are no longer needed .

事实上，有些有趣的研究表明催产素，一个社交产生的荷尔蒙会在我们性交，养育宝宝。

In fact , some interesting studies have pointed to oxytocin levels , which are a kind of bonding hormone that we release when we 're having sex or nursing

为什么一种食品添加剂可以产生这样效果目前还不清楚，但科学家们认为这可能与后叶催产素有关，后叶催产素是女性在哺乳和性交期间会产生的一种所谓的“拥抱”荷尔蒙。

Just how a food supplement could have such an effect is not clear , but the scientists suggest the involvement of oxytocin , the so-called ' cuddle " hormone produced by women during breastfeeding and lovemaking .

当他们想到肛门性交的时候，他们脑海里出现的是这样的论调：身体构造不匹配。随后我意识到，如果我想要关注人们内心里真正在想什么，我必须关注这种论调。

When they would think about anal sex , they had this argument in their minds that the " parts don 't fit , " and I realized that if I was going to address people 's actual concerns , I would have to address this argument .

在一项后续调查中，249个成年人（其中很多人已婚）被要求列出和某位异性交朋友的正面和负面因素。把“浪漫吸引”列为负面因素的人是将其列为正面因素的5倍。

In a follow-up study , 249 adults ( many of whom were married ) were asked to list the positive and negative aspects of being friends with a specific member of the opposite sex . Variables related to romantic attraction were five times more likely to be listed as negative aspects of the friendship than as positive ones .