alkapton bodies

例句：

1. 1. The alkaline ash found in the soil is a sign of high pH levels.
   土壤中发现的碱性灰烬是高pH水平的标志。
2. 2. The alkaline water can help neutralize acidic substances.
   碱性水可以帮助中和酸性物质。
3. 3. Alkaline batteries are more environmentally friendly than their alkaline counterparts.
   碱性电池比它们的碱性对应物更环保。