Ef
abbr. 每面（each face）；超精度（extremely fine）；仰角指示器（Elevation Finder）
🗣️ 情景例句
She must really miss them.
她准是很想主人。
Do you have any more colors?
有别的颜色吗？
Though it may be possible to measure the value of material good in terms of money,
虽然物质产品的价值可以用金钱来衡量，