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。
This inner cell mass develops into the embryo, which this here shown at a later stage is beginning to be clear that it's becoming an organism that looks like us.
内细胞群发育成为胎儿,这张图这是一个相对晚期的阶段,能越来越清晰地观察到,这团东西开始有个人形了
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