Undecynoic acid
[化] 十一碳炔酸; 十一碳一炔酸
🧩 词语组成解析
🗣️ 情景例句
Aren't you hungry, Marilyn?
不饿吗， Marilyn？
He has that book, doesn't he?
他有那本书，是吗？
My old friend, Harrison, had lived in the Mediterranean for many years before he returned to England.
我的老朋友哈里森在回到英国以前曾多年居住在地中海地区。