Acda
abbr. 军备监督和裁军署（Arms Control and Disarmament Agency）
🗣️ 情景例句
from the first time you stayed with us.
自从你们第一次在我们这里住开始
Rest breeds rust.
停止须生锈。
It looks as if she's gone away for a few days.
好象她要外出好几天了。