1. 性生活：sexual abuse || 性虐待 | sexual activity || 性生活 | Sexual arousal disorders || 性欲望异常
2. 性行为：sexal abstinence 性欲节制 | sexual activity 性行为 | sexual violence 性暴力
3. 妇女性行为：vulnerability of妇女的脆弱性 | sexual activity妇女性行为 | sexuality of妇女性征
4. 性活动：性的;生殖的 sexual | 性活动 sexual activity | 性平衡 sexual balance
noun
1. activities associated with sexual intercourse
e.g. they had sex in the back seat
Synonym: sexual practicesexsex activity