Acn
abbr. Automatic Celestial Navigation 自动天体导航\\nabbr. 乙腈
🗣️ 情景例句
Nice girl.
好女孩。
By reading we enrich the mind; by conversation we polish it.
读书可以使我门的思想充实，谈话使其更臻完美。
One packing case was crushed.
有一个箱子全压坏了。