Ecf
abbr. electrochemical fluorination-process 电化氟化法; extracellular fluid 细胞外液
🗣️ 情景例句
Don't waste your school years, son, they can determine your future.
孩子，别荒废你的学业，它们对你的未来有决定作用。
Idiot!
笨蛋一个！
That's quite true.
千真万确。