Ecf
abbr. electrochemical fluorination-process 电化氟化法; extracellular fluid 细胞外液
🗣️ 情景例句
I'm stressed out. I need a vacation.
我筋疲力尽了，我要休假！
We would appreciate it if you let us know whether you allow cash or trade discounts.
若能告知你方是否给现金折扣或商业折扣，将不胜感激。
Yes. I was.
是的，我在肉店里。