monohydroxy

例句：

1. 1. The compound is composed of a monohydroxyl group.
   这个化合物由一个单羟基团组成。
2. 2.The monohydroxyl groups are responsible for the acidity of the solution.
   单羟基团负责溶液的酸性。
3. 3. The monohydroxyl group is a common functional group in organic chemistry.
   单羟基团是有机化学中常见的官能团。