Eupittonic acid
[化] 优皮酮酸; 六甲金精
🧩 词语组成解析
🗣️ 情景例句
You've been a very helpful.
你帮了大忙。
Who is the auther of this mystery story?
谁是这篇神秘故事的作者？
We are all in favor of this plan.
我们都赞同这项计划。