ㄅㄨˋˋshìㄍㄠgāoㄉㄧ

  1. 不能分別是非好壞警世通言··秀才一朝交泰》:誰知世人不識高低異鄉公子如此形狀浪蕩便?」

can't recognize tall or short (idiom)​; doesn't know what's what