if you have sex with somebody without condom的意思是如果妳不戴套和別人做愛。
翻譯用英語翻譯為：translate。translate：v.翻譯;譯;被翻譯;被譯成;(使)轉變，變為；第三人稱單數： translates現在分詞： translating過去式： translated過去分詞： translated
例句如下:
1.He translated not only from the French but also, on occasion, from the Polish.他不僅做法文翻譯，有時也做些波蘭語翻譯。
2.The girls waited for Mr Esch to translate.女孩們等待埃施先生作翻譯。
3.I couldn't read or understand a word of Yiddish, so I asked him to translate.我根本不懂意第緒語，所以請他來翻譯。
4.Despite his illness, he remained actively engaged in translating documents.雖然生病了，他還是積極地參與文件的翻譯。