Carbon acid
[化] 碳氢酸
🧩 词语组成解析
🗣️ 情景例句
Just make the few changes I suggested and your letter will be perfect!
只要改动我提到的个别地方，你的信就会很完美了。
You haven't sold your product in our country so far, have you?
到目前为止，你们的产品尚未在我们国家销售，是吗？
Thank you very much, sir.
多谢，先生。