Mesitylinic acid
[化] ┯林酸; 3,5-二甲基苯甲酸
🧩 词语组成解析
🗣️ 情景例句
I'm sorry I missed him. I had to work late.
很抱歉我错过了他醒着的时候。我必须工作到很晚。
You're very cheerful today.
你今天很快活。
It marked the end of the great tradition of ships with sails and the beginning of a new era.
它标志着帆船伟大传统的结束与一个新纪元的开始。