Several other marketing experts question the wisdom of touting the GM brand at all right now, suggesting a dignified silence might be the best policy.
另外几个市场专家质疑恰好在此时吹捧通用商标的明智性，指出一个有威严的沉默也许是最好的策略。
2
Often, policy change is needed, and media advocacy programs can be an effective complement to a social marketing program.
大多数情况下，需要改变策略，同时媒体宣传对于社会营销项目也是一个有效的补充。
3
Policy--Social marketing programs can do well in motivating individual behavior change, but that is difficult to sustain unless the environment they're in supports that change for the long run.