HSK10+
yànquè'ānzhīhónghúzhīzhì
lit. can the sparrow and swallow know the will of the great swan?
燕雀安知鸿鹄之志 (燕雀安知鴻鵠之志)
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?
CC-CEDICT