Nitroguanidine
n. [化] 硝基胍
🗣️ 情景例句
We have to maintain communication to understand each other.
必须保持交流以求相互理解。
My brother's in the army.He was just promoted to the rank of major.
我的兄弟在军队工作.他就被提拔为少校。
We sometimes imagine a desert island to be a sort of paradise where the sun always shines.
我们有时想象荒岛是阳光终日普照的天堂。