Nitroguanidine
n. [化] 硝基胍
🗣️ 情景例句
It's a deal.
成交了！
Friends are thieves of time.
交朋友，费时间。
Fortunately for me, as I was wondering what to do next, there appeared on the horizon a man on horseback, riding in my direction.
不过，我是幸运的，正当我走投无路之时，从天边出现一个骑马的人向我骑来。