大神求帮助，解释一下其中的语法吧Children are a prime target for advertisers and salesmen across the world.Not only are they easily swayed by advertising,they are also persuasive in encouraging their parents to buy a product
Children are a prime target for advertisers and salesmen across the world. 在全球对于广告人和销售者来说，孩子都是他们的主要目标。
主语：children 谓语系动词：are 表语：a prime target 目的状语：for advertisers and salesmen 地点状语：across the world
Not only are they easily swayed by advertising,they are also persuasive in encouraging their parents to buy a product. 他们不仅容易受广告影响，他们在鼓励家长买某个产品的时候也更具说服力。
并列句，连词not only.. (but) also... not only 开头，开头的句子主谓倒装。倒装句的正常语序是：they are easily swayed by advertising. 他们容易被广告影响。被动语态的结构：be+过去分词 后一句不必倒装，用正常语序。