soda alum

例句：

1. 1. The soda water tasted very good.
   这种苏打水尝起来很好。
2. 2.He added some soda ash to the recipe for flavoring.
   他向食谱中添加了一些苏打灰来调味。
3. 3.The soda water was refreshing and made the drink taste better.
   这种苏打水很清新，让饮料的味道更好了。