Baking soda, otherwise known as bicarbonate of soda, sodium bicarbonate, and, less commonly, saleratus , is a chemical salt with diverse practical uses.
苏打，另外学名也叫重碳酸盐，碳酸氢钠或众所周知的小苏打是一种用途广泛的化学盐。
Baking soda, also known as bicarbonate of soda or sodium bicarbonate, supplies the carbon dioxide gas that leavens batters and doughs.
小苏打，就是碳酸氢纳，它可以提供使面团蓬松所需要的二氧化碳气体。
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