Well, this could also be a bystander at a rally who managed to record a video of a police officer beating a non-violent protester who's trying to let the world know what's happening.
这也可能是一个身处集会中的旁观者 录下了一段关于 警察殴打一个无辜抗议者的视频 他想让全世界知道发生了什么。