Anal sex without a condom is an extremely high risk activity for hiv transmission .

不用安全套的肛交绝对是hiv感染的高危行为。

Anal fistula red and swollen , that operation safety is most effective .

肛瘘红肿，那种手术最安全有效。

Anal retentive.are you saying she 's a neat freak ?

井井有条你是说她有洁癖?

Anal intercourse can bring variety to a sexual relationship if the partners want it and enjoy it .

如果性伴双方想要肛交和喜欢的话，异性肛交可以给性关系增添花样。

Anal sex always looks so clean in porn films but you know from what comes out of there , it can 't be that clean , right ?

肛交在色情电影里看起来是那么干净--但你应该知道从那儿出来的是啥东东，所以它不可能那么干净，是吧？