Second, because only male deer rub, the buck rub and its associated chemicals indicate the sex of the deer producing the rub.

第二，因为只有雄鹿会做出摩擦动作，摩擦动作和与之相关的化学物质表明了制造擦痕的鹿的性别。

youdao

"They can just say they won't do it." "Abstinence-only sex education denies young women opportunity to have the knowledge they need to make their own informed decisions."

VOA: standard.2010.05.12

Dean had dispatched the occupant of the apartment to the kitchen probably to make coffee while he proceeded with his love problems for to him sex was the one and only holy and important thing in life although he had to sweat and curse to make a living and so on.

安已经把这公寓的人发配到厨房了,也许去煮咖啡，好让他继续进行他的爱事,因为对他来说性是生活中仅有的一桩神圣而重要的事,尽管这样他得边流汗边咒骂来活着。

耶鲁公开课 - 1945年后的美国小说课程节选

However,the law does not bar sex discrimination in admissions at private undergraduate schools, only public ones.

VOA: special.2009.11.19

Rosenbaum is concerned that abstinence-only sex education programs that promote virginity pledges may also promote a negative view of condoms and birth control.

CNN: Virginity pledges don't mean much, study says

So, we carry on unhealthy relationships throughout our lives and unless somebody actually shows us and explains to us what a healthy relationship is and how to have a healthy relationship and how to have conversations about not only sex but different issues.

NPR: HIV-Positive Gay Latino Spreads Safe Sex Education

The couple were engaged by Christmas Eve that year, but argued over their sex life and only once attempted sex as Mr Hunnisett had trouble becoming aroused.

BBC: Christopher Hunnisett 'admitted killing in letter'