Researchers have tried for two decades to find a microbicide to fight H. I. V. transmission.
研究人员二十年来一直在试图寻找一种抗病毒凝胶能够防治艾滋病毒的传播。
The researchers said both methods greatly reduced the risk of H. I. V. infection.
研究人员说，这两种方法都大大降低了艾滋病毒的感染风险。
The measurement of the speed characteristic is an important detecting item for h. V. switch.
高压开关的速度特性测量是高压开关的基本特性的重要检测项目。
H. I. V. is the virus that causes AIDS.
艾滋病毒是一种能导致艾滋病的病毒。
She and Johnny had gone for their H. I. V. test that December.
她和约翰尼在那年12月去做了艾滋病毒测试。
That was the day I learned she'd had the second H. I. V. test and was o.
就在那天，我得知她做了第二次HIV检测，结果是正常的。
That was the day I learned she'd had the second H. I. V. test and was o.
就在那天，我得知她做了第二次HIV检测，结果是正常的。
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