Fers
abbr. facility error recognition system 设备差错识别系统
🗣️ 情景例句
how would you do it?
你怎么说？
She is singing in practice.
她在练习唱歌。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。