公益广告

对于广告我们并不陌生。但您看过公益广告吗？公益广告是非商业性的广告，反应社会上的问题。在8月5日的节目中，我们为大家带来“公益广告”。
We often watch advertisement. Have you seen the public service ads? Public service ads is non-commercial advertisement. They reflect social problems. On August 5, we are bringing you "public service ads".

http://www.imandarinpod.com/hoola/index.php/podcasts/16-2009-12-02-23-37-52/1950-2014-08-05-13-10-11