一级理论和二级理论的区别

Ao Ping clenched his fists, he understood what Ao Feng meant. Although Ao Feng didn't want to offend Ning Cheng, he also had some ideas to help him. Ning Cheng's reputation is too great. If he takes action, there is no guarantee that Ning Cheng will not take action. Once Ning Cheng takes action, I'm afraid Ao Ping will also die....