Nitropolyurethane
硝基聚氨酯
🗣️ 情景例句
I just spoke with Charley Rafer.
我刚和Charley Rafer通了电话。
I'd rather dream than study my chemistry.
我还是做我的梦，总比研究化学好。
The boys felt tired so they put out the fire and crept into their tent.
于是他们扑灭了篝火，钻进了帐篷。