Mnng
N-甲基-N'-硝基-N'-亚硝基胍
🗣️ 情景例句
Hi.
你好！
The wise man's tongue is a shield, not a sword.
智者之言，是保卫而非攻击。
All his life he reached out for the truths of spirits and gods.
他的一生都在追求神灵的真谛。