[浅肤色R]Notes: ubiquitous无处不在的=widespread=pervasive scroll through滚动浏览 vast amounts of大量的=massive=plenty of=abundant incredible precision极其精准 raise a number of concerns about引起对...的担忧 generate leads创造商机；开发潜在客户 build brand awareness and engagement建立品牌知名度和参与度 demographic data人口统计数据 cost-effective高性价比的 Compared to与...相比=in comparison with print advertising印刷广告；平面广告 inexpensive便宜的=affordable=low-cost a viable option一种可行的选择 startups创业公司 demographics人口结构 psychological techniques心理技巧 attention-grabbing引人注目的 persuasive language有说服力的语言 been accused of被指控 manipulate elections操纵选举 spread misinformation传播错误信息 troll恶意挑衅的帖子；键盘侠 propaganda大肆宣传；鼓吹 in an attempt to为了=in a bid to=in an effort to=for the sake of=for the purpose of be aware of意识 be associated with与...联系 be mindful of 注意；留心 be skeptical of怀疑