柯林斯詞典potash /?p?t???/ 1. N-UNCOUNT Potash is a white powder obtained from the ashes of burned wood and is sometimes used as a fertilizer. 碳酸鉀 返回 potash劍橋詞典a white powder containing potassium that is put on soil to make crops grow better 鉀堿，碳酸鉀，草堿 返回 potash