Market cost can include advertisement cost, propagandist cost, a few charge during inspecting personnel if: Traffic expenses, accommodation cost, board expense is waited a moment.
市场费可以包括广告费，宣传费，考察人员考察期间的一些费用如：交通费，住宿费，伙食费等等。
2
Traffic jam leads to expense and unpredictability, things that keep investors away.
交通堵塞会产生额外开销和不可预测性，这让投资者望而却步。
3
Whole-hearted pursuit of more general, high-traffic search terms at the expense of lower-volume, high-conversion keywords may send you (and your money) barking up the wrong tree.