Ef
abbr. 每面（each face）；超精度（extremely fine）；仰角指示器（Elevation Finder）
🗣️ 情景例句
You'd better not make Harry any more nervous than he is.
你最好别让Harry更加紧张了。
I'm not sure. I'll have to think about it.
我现在不敢说定，我得考虑一下。
And this is Luming.He is Chinese.
这位是鲁明。他是中国人。