美 [ˈsekʃuəl ækˈtɪvəti]
性活动；性行为
activities associated with sexual intercourse
同义词： sexual practice / sex / sex activity
性生活-引用次数：13
The text emphasizes the necessity of teaching sexual life techniques as contained therein. It then introduces the fundamental principle of controlling sexual desire and regulating sexual activity based on one's age.
本文介绍了《备急千金要方》中谈及传授房中术的必要性，然后介绍了性生活节欲的根本原则和传授房中术的年龄。
参考来源《备急千金要方》养生思想研究
性活动
性行为-引用次数：1
参考来源性权利研究
性行为
性活动；性行为
He had been engaging in some kind of kinky sexual activity.
他一直在进行一些反常的性活动。
The virus can also spread through sexual activity, and if people share injection devices.
VOA : special.2010.11.16
The message also included links to information about diseases spread by sexual activity.
VOA : special.2009.02.03
It deals with relationships, parents, death, illness, mental health issues, the consequences of drug use and sexual activity.
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The definition of what constituted "sexual activity" was "extremely vague" particularly when that "activity" might have been initiated by the student.
Earlier this summer Dr Bearman reported, in the American Journal of Sociology, an examination of high-school students' sexual activity and romantic relationships.