柯林斯词典baking powder (baking powders) 1. N-MASS Baking powder is an ingredient used in cake making. It causes cakes to rise when they are in the oven. 发酵粉 返回 baking powder剑桥词典a mixture of powders used to make cakes rise and become light when they are baked 发酵粉 返回 baking powder