Vinylene
1,2-亚乙烯基, 乙烯撑, 次亚乙烯基
🗣️ 情景例句
I guess you're right.
我想你说得对。
Write it on your heart every day is the best day of the year.
要记住，每天是一年中最好的一天。
Guess what?
猜猜看？