Acn
abbr. Automatic Celestial Navigation 自动天体导航\\nabbr. 乙腈
🗣️ 情景例句
I've never been more serious.
我从来没有比现在更认真了。
I hope so.
我希望如此。
and that is what all patients demand of their doctors----to be cured at no inconvenience to themselves.
病要治好，但不要太麻烦。