《世说新语·言语》
鹤高举翅膀却不能飞了，便回头看看翅膀，低垂着头，看去好像有懊丧的意思。
鹤轩翥不复能飞，乃反顾翅，垂头视之，如有懊丧意。
The cranes raised their wings high but could not fly. They looked back at their wings and lowered their heads as if they were disappointed.