translation.en: In addition, these researchers found a new site on HIV where the antibodies can grab onto, and what's so special about this spot is that it changes very little as the virus mutates.
translation.zh: 另外，这些研究院发现 艾滋病毒新的点 抗体抓住的地方。 这一点特别就是 抗体不会改变 在病毒变异的时候。