translation.en: What I mean is, imagine you're in a restaurant, you're having a conversation, there are all kinds of other conversations going on in the restaurant, you want to filter them out, you want to focus on what's important to you.
translation.zh: 我的意思就是， 想象你在一个餐厅中， 正在和人交谈， 而餐厅中有很多 各种各样的交谈正在进行着， 你想要从中过滤出信息， 你想要专注于 对你有用的信息。