Public health officials say tobacco companies are avoiding a worldwide ban on advertising tobacco products to young people by using smartphone applications, or "apps." The officials say some of the apps are designed to persuade young people to start smoking.公共卫生官员称烟草公司正使用智能手机应用来在全球范围内躲避向年轻人宣传烟草产品的禁令.官员称有些应用的设计目的就是鼓励年轻人吸烟.
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