School bullying(欺凌)has long been seen as an unfriendly practice of adolescence with terrible results. Now the “Be More Than a Bystander” campaign organized by Advertising Council, a nonprofit organization, is aiming to remove school bullying by urging parents to teach their children to face such behavior. It makes use of a series of television, print and online ads to promote the idea that if witnesses know what to do, they can take various steps, such as moving the victim away from the situation or reporting it to an adult, to stop the bullying. Parents talk to their 2.请把下列各种结构与层次用线连接起来.