baking soda tooth powder ; baking soda dentifrice
小苏打牙粉 baking soda tooth powder
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小苏打洁牙粉 baking soda tooth cleaning powder
大多数的牙粉将小苏打用作基础原料，还有一些牙粉含有诸如糖精等在今天看来不适宜采用的成分。
Bicarbonate of soda was used as the basis for most toothpowders, and some contained other ingredients that would not be considered appropriate today, such as sugar.
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