“硬水”造句

硬水使壶生水垢.
Hard water furs the kettle.

硬水使水壶生了垢.
Hard water furred the kettle.

经过加入碳酸钠能被软化的硬水,称为永硬水.
Hard water which can be softened by adding sodium carbonate is called permanent hard water.

• #硬水