This over-the-counter medication blocks the stomach from producing excess acid. Take two tablets each morning for the next three days.

这种非处方药物可以阻止胃部产生过多的酸。接下来三天每天早上服用两片。

Let's see how much acid it takes to turn our distilled water a little bit acidic.

让我们看看需要多少酸才能使我们的蒸馏水略带酸性。