劍橋詞典a white powder used to make foods rise when they are baked 碳酸氫鈉，小囌打 Mix together 250 g plain flour and a teaspoon of bicarbonate of soda and then add to the cake mixture . 將250尅純麪粉與一茶匙小囌打攪拌在一起，然後加入蛋糕粉中。 返回 bicarbonate of soda