Undecynoic acid
[化] 十一碳炔酸; 十一碳一炔酸
🧩 词语组成解析
🗣️ 情景例句
I graduated from Nanjing University in June, 2000.
我2000年6月毕业于南京大学。
I've had this cough for a week now.
我这样咳嗽已经一周了。
I repeated my question several times and at last he understood.
我把问话重复了很多遍。他终于听懂了。