1. Yet spending on ads carried over cell-phone networks last year amounted to just $1. 然而，去年手机网络上的广告支出仅为1美元。
2. Yet spending on ads carried over cell-phone networks last year amounted to just $ 1. 然而，去年手机网络上的广告支出仅为1美元。
3. There are 2.2 billion cell-phone users worldwide, a total that is growing by about 25% each year. 全球有22亿手机用户，这个数字每年以大约25％的速度增长。
4. Signs barring cell-phone use are a familiar sight to anyone who has ever sat in a hospital waiting room. 任何在医院候诊室坐过的人都熟悉禁止使用手机的标志。
5. Even with more traffic and fewer sidewalks, modern parents do have one advantage their parents didn't: the cell-phone. 即使有更多的交通和更少的人行道，现代的父母有一个他们的父母没有的优势：手机。
