But the water which comes to our houses is almost always hard water.

但是流到我们屋子里, 差不多总是。

Hard water is safe to drink and may even be beneficial to someone who is mineral-deficient.

可以安全饮用，甚至可能对缺乏矿物质人有益。

Then you may begin to wonder: Do I have hard water?

那么你可能会开始怀疑：我（家也）有吗？

If your water picks up calcium and magnesium in large amounts en route to your tap, it's considered hard water.

如果你在通往龙头途大量吸收钙和镁，那就被认为是。

It goes through a course of hard water and Chicago dirt and comes up looking like a rose leaf with the morning dew on it.

它经过一段和芝加哥泥土， 看起来像一片玫瑰叶， 上面有晨露。