Tetramethyl ethylene ketone
[化] 2,3-二甲基-2,3-丁二醇; 频哪醇
🧩 词语组成解析
a. [化]四甲基的
n. 乙烯\\n[化] 乙烯; 1,2-亚乙基
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
There's always a chance that something may go wrong.
出岔子是在所难免的。
I'll call the roll before class.
课前我要点名。
You go to the school office and telephone the police. Please hurry up!
“你去学校办公室给警察打电话。请快一点！快点！”