As most now realize, the fundamental problem that social networks face when trying to monetize through an advertising-driven business model is the lack of trust.
正如大家现在所意识到的，社会化网络在以广告为核心的商业模式设法赢利时面临的根本问题是缺乏信任。
2
Driven on by advertising, we do our best to oblige: we buy more, travel more and play more, but we struggle to keep up.
在广告的推动下，我们努力照办：我们多多购买多多旅游多多玩儿，但得尽力坚持下去。
3
Some businesses, especially those in advertising and marketing, are Numbers driven businesses.