谁哭谁笑谁懂得谁对谁错谁难过
[shéi kū shéi xiào shéi dŏng dé shéi duì shéi cuò shéi nán guò]
'Who weeps, who laughs, who understands right from wrong, who feels sorrow?' Conveys deep introspection or complexity surrounding human relationships and conflicts where different parties react in various ways: joyous, mournful, conflicted, confused; expressing a mix of sentiments ranging from bewilderment to empathy, sadness, and confusion.