Dinitrocellulose
[化] 二硝酸纤维素\\n[医] 硝基纤维素, 火棉
🗣️ 情景例句
After the marathon, most of the competitors looked all in.
跑完马拉松，大多数参加比赛的人显得疲劳不堪。
The devil is good when he is pleased.
魔鬼高兴，也发善心。
I can't find it. There are just a few loose coins at the back of the drawer.
我也找不到。在抽屉底只有一些零散的钱币。