Monocarboxylic
a. [化]一元羧的
🗣️ 情景例句
What are some places of interest to visit there?
那儿有什么有趣的地方可以参观的吗？
I must say that I'm a little at a loss as to how to introduce them.
我必须表明对于如何介绍他们，我有点不知所措。
It is important for us to express our opinions.
对我们来说，表达我们的意愿很重要。