The parents are irresponsible and the passers-by are cold and heartless.父母失责，路人冷漠。 Stop being indifferent!请停止冷漠。 passers-by 过路人 heartless people 无情的人 hit-and-run incident 肇事逃逸事故 rubbish collector 拾垃圾的人 surveillance cameras 监视摄像机 emergency surgery 紧急手术 toddler 初学走路的孩子 busy market 繁忙的市场地区 in a coma 陷于昏迷 wander off 走散 roller compaction/run over 碾压 cognitive death 脑死亡 autonomous respiration 自主呼吸 humanistic concern 人文关怀 van 面包车 give oneself up 投案自首