Acn
abbr. Automatic Celestial Navigation 自动天体导航\\nabbr. 乙腈
🗣️ 情景例句
Good-bye.
再见。
We used to have a lot of fun when we were that age.
当我们是变老时，我们过去常有很多趣事。
Children often love to play this game.
孩子们常爱玩这种游戏。