As I mentioned before, a national campaign will start next month.

如我以前所提到的，我们下个月将开始全国范围内的宣传活动。

Carla: As I mentioned before, a national campaign will start next month.

正如我以前所提到的，我们下个月将开始全国范围内的宣传活动。

But a national campaign among the fans of the star Trek television show.

但是电视节目《星际旅行》的狂热爱好者们发起了一项全国性的运动。

Carla: As I mentioned before, it'll be a national campaign starting next month.

Carla：正如我以前所提到的，我们下个月开始的宣传活动，是全国范围内的。

The Toys for Tots program is national campaign that has helped millions of children.

这个全国性计划帮助了上百万的孩子们。