Formamidine
甲脒
🗣️ 情景例句
This is heaven, Harry!
这简直是天堂， Harry！
What shall I send him for his the New Year?
我要送他什么东西作为新年礼物？
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951;
这个频率是空间氢原子释放的自然频率，是在1951年被人类发现的。