Efd
abbr. electro fluid dynamics 电流体动力学; excused from duty 免除责任
🗣️ 情景例句
I love to get away and spend a few days with nature.
我好想离开这里到大自然里呆几天。
Still waters have deep bottoms.
静水常深。
Soon, the bees in the hive flew out.They flew right to the dish.
很快，蜂箱里的蜜蜂飞了出来，它们径直朝碟子飞去。