2011年6月7日,上海李奥贝纳广告公司为全球领先的家电制造商西门子公司推出了最新的广告宣传活动,大力宣传西门子独创的能令食物持久保鲜的真空科技。广告活动于6月1日在全国正式启动,广告片同 On June 7, 2011, Shanghai Leo Burnett Advertising Co., Ltd. launched the latest advertising campaign for Siemens, the world’s leading home appliance maker, to promote the vacuum technology unique to Siemens that will keep food fresh. Advertising campaign on June 1 officially launched in the country, commercials with the same