safe sex

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌsafe ˈsex noun [uncountable]  SYSEX/HAVE SEX WITHways of having sex that reduce the risk of spreading AIDS and other sexual diseases, especially by using a condom 安全性交，安全性行为

ˌsafe ˈsex nounChineseSyllable  

safe sex
ˌsafe ˈsex noun [uncountable]
ways of having sex that reduce the risk of spreading AIDS and other sexual diseases, especially by using a condom

safe sexBrE /ˌseɪf ˈseks/ 🔊NAmE /ˌseɪf ˈseks/ 🔊 noun [uncountable] sexual activity in which people try to protect themselves from AIDS and other sexual diseases, for example by using a condom 安全性交（采取针对艾滋病和其他性病的预防措施）