燕雀焉知鸿鹄之志yàn què yān zhī hóng gǔ zhī zhì释义lit. can the sparrow and swallow know the will of the great swan? (idiom); fig. how can we small fry predict the ambitions of the great?单字详解燕yan雀que焉yan知zhi鸿hong鹄gu之zhi志zhi