Dinitrobenzoic acid
[化] 二硝基苯甲酸
🧩 词语组成解析
🗣️ 情景例句
His experience will be valuable to both of us.
他的经验对你我都很有用。
Is this book his?
这本书是他的吗？
May I have your attention please?
请大家注意一下。