Ef
abbr. 每面（each face）；超精度（extremely fine）；仰角指示器（Elevation Finder）
🗣️ 情景例句
I can't ask him for a raise, I have no experience in negotiation.
我不能叫他给我加薪，我在谈判方面没经验。
The knife is dirty, Would you bring me a clean one, please?
这刀子是脏的，请你拿个干净的给我。
Here's your umbrella and your coat.
这是您的伞和大衣