Mnng
N-甲基-N'-硝基-N'-亚硝基胍
🗣️ 情景例句
Do you have any sales experience?
你有销售经验吗？
By the street of Bye and bye one arrives at the house of Never.
迁延因循，一事无成。
Spring is a pretty season，
春天是一个好季节。