translation.en: So when we're working together in person, I'm not only looking at your face but I'm also gesturing and manipulating objects, and that's really hard to do when you're using tools like Skype.
translation.zh: 当我们面对面工作时， 我不仅可以看着你的脸， 我还可以比划和操纵物品， 这正是我们利用 像Skype这样的工具时非常难实现的。