Nitroguanidine
n. [化] 硝基胍
🗣️ 情景例句
It won't sound like a big deal,
这事听起来没啥严重，
Affectionate mother.
满怀慈爱的母亲。
If, as has been reported, they have protected humans from sharks,
正如报道中所说，如果海豚保护人不受鲨鱼侵害，