Ecf
abbr. electrochemical fluorination-process 电化氟化法; extracellular fluid 细胞外液
🗣️ 情景例句
I'd love some cola, please.
请给我可乐。
What's so funny?
什么事那么好笑？
He is respectful to his elders.
他对长辈很恭敬。