ㄍㄜㄐㄧㄧㄢyānㄩㄥˋyòngㄋㄧㄡˊniúㄉㄠdāo

  1. 何必論語·》:弦歌夫子莞爾割雞焉用牛刀!』」比喻處理小事大才··》:割雞焉用牛刀小將大帥。」封神演義·》:太師用兵多年如今為何顛倒西不過是姜尚割雞焉用牛刀?』」殺雞焉用牛刀」。

lit. why use a pole-ax to slaughter a chicken? (idiom)​, fig. to waste effort on a trifling matter, also written 殺雞焉用牛刀[sha1 ji1 yan1 yong4 niu2 dao1]