백출: 백출 [百出] ~하다 arise[appear / pop up] in great numbers. 그 문제로 의론이 ~했다 The matter became the subject of heated discussion. 어려운 문제가 ~했다 A variety of difficult problems arose one after another.
백청: 백청 [白淸] [희고 질 좋은 꿀] white honey of good[fine] quality.