Efd
abbr. electro fluid dynamics 电流体动力学; excused from duty 免除责任
🗣️ 情景例句
They have an opening.
他们有一个空房间。
Heh, heh, my bag is large but light.
哈，哈，我的袋子虽然大，但是轻啊。
Let's take a short break for lunch.
让我们休息一会儿，去吃午饭。