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

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.

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。

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They believe that sex is primarily for procreation.

他们认为，性交主要是为了繁衍。

《牛津高阶英汉双解词典》

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

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。

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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.

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。

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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.

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。

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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.

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。

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

Paul Warambo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。

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Who's that man woman boy girl?

那个男人女人男孩女孩是谁？

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A man a woman, still a person.

男人女人，还是一个人。

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For the fact remains that marriage is good for women as well as men, married women are healthier and happier than their single sisters.

婚姻对于男人女人都有好处，这是个不争的事实。已婚女士比单身女性更健康更幸福。

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Men and women should always be manicured, according to Megaro.

Megaro认为男人和女人都应该修指甲。

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And women. Men and women. Both! All!

包括男人和女人所有人才对

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He then analysed the men's and women's DNA, looking in particular at the genes that build a part of the immune system known as the major histocompatability complex ( MHC).

然后分析这些男人和女人的DNA，特别是查看组成一部分免疫系统的基因，即人们所知的主要组织相容性复合物（MHC）。

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If you have men and women thrown together in inhospitable surroundings, you are going to get some sexual tension

你要是让男人和女人一起呆在不友好的环境里，男女关系肯定会紧张。

《柯林斯高阶英汉双解学习词典》

What are the roles of men and women within society?

这个国家的男人和女人的角色分别是什么？

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Men and women tend to experience different emotions when they receive advice from a partner, says Anna Ranieri, a psychologist in Palo Alto, Calif., and co-author of' How Can I Help?

加州帕洛阿尔托市（Palo Alto）的心理学家安娜•拉涅利（Anna Ranieri）说，男人和女人在从伴侣那儿接受建议时一般会产生不同的情感。

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Men and women have increasingly similar rights, opportunities and interests, which can make cross-sex friendship very political, noted Werking.

Werking指出，男人和女人有了越来越相似的权利、机会和兴趣。

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There are individual men and women and there are families.

世上有个体的男人和女人、有家庭。

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She added:' Who needs men? Who needs women?

她说：还需要男人和女人吗？

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It shows a towering disdain for both men and women.

它对男人和女人都表现出过度蔑视。

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