在人海中窒息在孤独中死去
[zài rén hăi zhōng zhì xī zài gū dú zhōng sĭ qù]
Expresses the intense emotions of alienation, depression and hopelessness, even in midst of a crowded city or situation, where the individual may still feel profoundly alone, to the extent that he/she suffocates and metaphorically dies from the loneliness.