Ef
abbr. 每面（each face）；超精度（extremely fine）；仰角指示器（Elevation Finder）
🗣️ 情景例句
She was a wonderful woman. A real friend.
她是个很好的女人， 一个真正的朋友。
How often do you go swimming?
你多久去游一次泳？
As usual, the police will have a difficult time.
同往常一样，警察的日子将不好过，