Tetrolic aldehyde
[化] 丁炔醛
🧩 词语组成解析
aldehyde
['ældihaid]
n. 醛，乙醛;
🗣️ 情景例句
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
The first step is as good as half over.
第一步的成功等于事情的一半已完成。
Things couldn't be better.
一切顺利。