Diacetylene polymer
[化] 二乙炔聚合物
🧩 词语组成解析
联乙炔, 丁二炔
🗣️ 情景例句
What if we can't tie the tie?
如果我们弄不好领结怎么办？
There has been a great mistake.
发生重大的错误了。
I would keep my mind fresh for reading when I got home formwork Resisting the hypnotizing effect of television, I sat in my room for a few evenings with my eyes glued to book.
晚上下班回家看书时头脑更清醒些。有几天晚上，我极力摆脱了电视的诱惑，坐在自己的房间里，两眼盯在书上。