早期诊断是极重要的，因为次发性局部或系统性之感染，若无即时且适当之治疗，会导致败血症和死亡。

Early diagnosis may be important because secondary local and systemic infection may supervene and, without timely and appropriate intervention, the disease often leads to sepsis and death.

youdao

如果SIV已经存在万年，那么这好几千年来在它扑向人类使之感染之前，人类就已经不断地暴露于它的阴险的魔爪之下了。

If SIV is millennia old, it is likely that humans had been exposed to it off and on for many thousands of years before it made the leap to infect them, becoming HIV.

youdao

When Yeats aestheticizes the political, he makes it moving, moving in the literal sense of, I think, emotionally engaging and cathartic.

叶芝将政治艺术化时，他使之变得感人，在文字上很感人，我想它使人情绪感染，灵魂净化。

耶鲁公开课 - 现代诗歌课程节选

You breathe it in, it infects the cells of your respiratory tract, and the virus begins to reproduce, and then it spreads throughout your body.

你将之吸入,病原体感染了呼吸道细胞,病毒开始繁殖,接着传遍你的全身

耶鲁公开课 - 生物医学工程探索课程节选

That is also an advantage of using them as gene therapy vehicles because they will only infect cells that they are - that they have an affinity for or that they're prone to affect.

非常有利于将其,作为基因治疗的载体使用,因为它们只能感染那些--,它们对之具有亲和性,或者说它们倾向于去感染的细胞

耶鲁公开课 - 生物医学工程探索课程节选