Gun cotton
[医] 火棉, 低氮硝化纤维素
📖 牛津释义
gun cotton
cellulose material impregnated with nitric acid, used as an explosive 强棉药; 硝化棉（用作炸药）.
🧩 词语组成解析
gun
[ɡʌn]
n. 枪;发令枪声;受雇杀人的枪手;喷射器;
vt. 射击（某人）;给…加大油门;打猎;
vi. 用枪打猎;
cotton
['kɑtn]
n. 棉;棉线;棉织物;（其他植物所生的绒毛状的）棉状物;
vi. 喜欢;赞成;一致;交往;
🗣️ 情景例句
I have to think about it.
我得想一想。
What did you talk about?
你们谈论了什么？
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。