Ecf
abbr. electrochemical fluorination-process 电化氟化法; extracellular fluid 细胞外液
🗣️ 情景例句
How much is a room per night?
一个房间每晚多少钱？
Punctuality is the soul of business.
严守时间是办事情的重要原则。
You can depend on us, sir.
先生，您可以信赖我们。