The Booking Entitlement is subject to the sufficient advertising time that can be provided by IEM.

广告播出次数之订购是受制于本公司能提供足够的广告时间.

The campaign is also an attempt to highlight the effectiveness of the company's TV Ads system, which lets Google act as a broker to sell advertising time on television networks.

不过，这次创举还有另外一个目的，那就是测试谷歌视频广告系统的有效性，以期更好的彰显谷歌作为视频网络广告经销商的市场地位。