Efs
(ef 的复数) abbr. 每面（each face）；超精度（extremely fine）；仰角指示器（Elevation Finder）
🗣️ 情景例句
You look very young. How old are you?
你看起来真年轻， 你多大了？
The stove makes the room warm.
壁炉使得满屋生暖。
What is called 'modern civilization' is not the result of a balanced development of all man's nature.
所谓“现代文明”并不是人的天性平衡发展的结果，