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.

youdao

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.

youdao