Monogamous relationships don't guarantee absolute safety unless you've both been tested and are HIV-negative.

一夫一妻制不能绝对保证安全，除非你们都检查过身体且HIV都呈阴性。

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China's present HIV prevalence rate of 0 · 06% might seem low, but the absolute size of the population means large Numbers of people are infected with HIV.

中国现在的HIV感染率0.06%也许看起来很低，但是由于绝对人工基数太大，意味着有大量HIV的感染人群。

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