Outdoors there is very good air circulation that will quickly diffuse the virus particles.

室外的空气流通很好，病毒粒子会迅速扩散。

That's using high-quality air filters to remove virus particles.

就是用高质量空气过滤器来清除病毒分子。

The coronavirus does not spread as often outdoors because fresh air breaks up the virus particles.

新冠病毒在户外传播率不高，因为新鲜空气会分解病毒颗粒。

Viruses are wildly successful organisms.There are about 100 million times as many virus particles on Earth as there are stars in the observable universe.

病毒是非常成功的有机体。地球上的病毒颗粒数量大约是可观测宇宙中恒星数量的 1 亿倍。

When the virus enters into the lytic phase, thousands of virus particles can be made from a single cell which can destroy the cell and subsequently infect neighboring cells.

当病毒进入裂解期时，单个细胞就能产生数千个病毒颗粒；这些病毒颗粒能裂解宿主细胞，随后感染相邻的细胞。

Even though both approaches are similarly effective at killing the virus, soap and water has two benefits: first it washes away any dirt which could otherwise hide virus particles.

尽管香皂和洗手液在消毒方面一样有效，香皂和清水有着两个好处：首先，它们会洗去手上隐藏病毒分子的污垢。

And as a result, for a vaccine, instead of eliciting a neutralizing antibody, what one is attempting to do is to identify where the vulnerable sites on the virus that are the same on every virus particle.

所以要研制艾滋病疫苗，我们要做的不是诱发中和抗体，而是要试图识别每个艾滋病分子之间的共同弱点。