Mesitylic acid
[化] 2,4,4-三甲基-5-氧代脯氨酸
🧩 词语组成解析
🗣️ 情景例句
No. I really don't know how to go about it.
没有。我真不知道如何填。
I wondered if you could buy me some pencils?
我不知道你是否能替我买铅笔？
You're really talented.
你很有天赋。