Vinylene
1,2-亚乙烯基, 乙烯撑, 次亚乙烯基
🗣️ 情景例句
A young female may be addressed as 'young lady'.
一个年轻的女性可以被称作 'young lady'。
Many hands make light work.
人多好做活。
Are there any flowers in the picture?
画里面有花吗？