Mnc
abbr. meningococcal serogroup C 脑膜球菌血清群C
🗣️ 情景例句
You must develop the muscles of your speech organs to produce unfamiliar sounds.
所以你必须训练和发展你的发音器官（声带、舌、口、鼻腔等）的肌肉，以便发出陌生的（另外一种语言）声音。
She conducted herself well.
她行为端正。
That's all!
就这样！