Diacetylene-dicarboxylic acid
[化] 联乙炔二羧酸; 己二炔二酸
🧩 词语组成解析
联乙炔, 丁二炔
[化]二羧基的
🗣️ 情景例句
Weight: eight pounds six ounces.
体重： 八磅六盎司。
I'm going to show him how to speak Chinese.
我正要指点他如何讲中国话。
I was only five when my father had taken me abroad, and that we eighteen years ago.
我5岁那年，父亲就带我出了国，那是18年前的事了。