product categories短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 🌏产品分类；产品种类；产品类别 And today, if you look at the cell phone and the PDA and the PC and notebooks, desktops, there's a pretty clear distinction among those various product categories. 今天，如果看手机,掌上电脑，个人电脑，笔记本电脑，和台式电脑，就会发现很明显的差别,存在于不同的产品之间。163