金玉其外 (gam1 juk6 kei4 ngoi6) — all that glitters is not gold; showy but useless; whited sepulchre in Cantonese
gamˉ¹金jukˍ₆玉keiˎ₄其ngoiˍ₆外Mandarin Pinyin: jin1 yu4 qi2 wai4
Meaning of 金玉其外
nounall that glitters is not gold; showy but useless; whited sepulchre
nouncoated in gold and jade