Vinylene
1,2-亚乙烯基, 乙烯撑, 次亚乙烯基
🗣️ 情景例句
I'm writing a story for the high-school paper.
我正在为高中校刊写一篇东西。
It is my pleasure to introduce the keynote speaker for today.
我很荣幸地介绍今天的主讲人。
Morning! I'm sorry to trouble you. Could I borrow a pan, please? Mine has just broken.
早上好！对不起，打扰您了。我想借您的平底锅，可以吗？我的刚刚打碎了。