Pentadecynic acid
[化] 十五炔酸; 十五碳炔酸
🧩 词语组成解析
🗣️ 情景例句
I think that really answers your questions, Marilyn.
我觉得这确实解决了你的问题， Marilyn。
The problem is far from easy.
这问题绝非易事。
He was efficient in his work.
他工作效率高。