ad spending的用法和樣例：
例句
- Many Chinese companies' efforts to build brands of their own are also fuelling ad spending.
許多中國公司努力創建自有品牌，這也推動了廣告支出。 - We already know that financial-services companies, the biggest buyers of paid-search and online ads, have cut back their online ad spending as a result of the housing crunch.
眾所周知，作為付費搜索和在線廣告最大買主的金融服務公司，由於房市的崩盤而削減了在線廣告支出。
