outdoor sign的用法和樣例：
例句
- A city alderman who lives nearby found a technical reason to jettison the sign.
一名住在附近的市議員找了一個技術上的理由，把該廣告牌給拆除了。 - And Focus Media would keep holding its internet advertising, cinema advertising and traditional outdoor billboard business.
分眾傳媒將保留其互聯網廣告業務，影院廣告業務以及傳統戶外廣告牌業務。
