杀 ㄕㄚ shā 彘 ㄓ ˋ zhì 教 ㄐㄧㄠ ˋ jiào 子 ㄗ ˇ zǐ 殺 ㄕㄚ shā 彘 ㄓ ˋ zhì 教 ㄐㄧㄠ ˋ jiào 子 ㄗ ˇ zǐ to kill a pig as a lesson to the children (idiom); parents must teach by example