Phthalidene-
[化] 2-苯并[c]呋喃酮亚基
🧩 词语组成解析
2-苯并[C]呋喃酮基
🗣️ 情景例句
I wonder whether I might ask you a question.
我是否可以问你一个问题？
They are so busy these days, that they don't even have time for their friends.
他们最近忙得没法和朋友见面。
At the end of the first lap, Li Lei quickly passed the stick on to Jim.
在第一圈结束时，李磊迅速地将棒传给吉姆。