risk sexual behavior 性危险行为
education of healthy sexual behavior 性健康教育
sexual risk behavior 性风险行为
Sexual criminal behavior 性犯罪行为
The incidence of sexual behavior was 42.27% and undesired abortion was 12.80%.
婚前性行为发生率为42.27%，非意愿性妊娠人工流产(含引产)率为12.80%。
参考来源 - 某市3196名未婚高校女生生殖健康状况调查—《中国学校卫生》—2007年第2期—龙源期刊网The university student's sex attitude gradually changed and the premarital sexual behavior also happens in an certain rate.
婚前性行为不仅影响大学生的学业,并且使大学生面临一系列的生理心理问题。
参考来源 - 医科大学生婚前性行为态度影响因素的多元分析和集对分析·2,447,543篇论文数据，部分数据来源于NoteExpress
The study found that about fourteen percent of those receiving the e-mail removed sexual behavior information from their site.
VOA: special.2009.02.03
About fourteen percent of those receiving the e-mail removed information on sexual behavior.
VOA: special.2009.02.18
The activities are said to include drug use,sexual behavior and violence.
VOA: special.2009.02.03
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