过分抱怨?小孩子都看得穿3岁大的孩子已经可以区分合情合理的悲伤与过分的吵闹抱怨之间的不同。德国马普研究所的心理学家设计了两种情境:一种情境下,孩子看到一个成人的确受到了不公正的对待或伤害而悲伤,比如被玩具磕到或者没有得到应得的弹球;另一种情境则是成人没有受到实质的伤害, Too much to complain that children can see that wearing a 3-year-old child has been able to distinguish the difference between plausible grief and excessive raucous complaints. Psychologists at the Max Planck Institute in Germany have devised two scenarios: In one scenario, a child sees an adult sad indeed as being unjustly treated or injured, such as a pinball knocked or not received due ; Another situation is that adults have not been substantially harmed,