剑桥词典a white powder used to make foods rise when they are baked 碳酸氢钠，小苏打 Mix together 250 g plain flour and a teaspoon of bicarbonate of soda and then add to the cake mixture . 将250克纯面粉与一茶匙小苏打搅拌在一起，然后加入蛋糕粉中。 返回 bicarbonate of soda