Ethyl ketene
[医] 乙基乙烯酮
🧩 词语组成解析
[化] 乙基\\n[医] 乙基
n. [化] 乙烯酮, 烯酮
🗣️ 情景例句
Excuse me. Is this seat taken?
对不起 ，请问这个座位有人吗？
To know everything is to know nothing.
事事皆知，事事不懂。
Thank you very much for asking me to Ann's party on Sunday.
非常感谢你邀请我参加星期天安的聚会。