F-number
n. 数, 光圈数
🧩 词语组成解析
🗣️ 情景例句
Could you please say that again?
能再重复一遍吗？
The basketball player is renowned for his fast breaks.
这名篮球运动员以快著称。
Jim! Come this way, please!
吉姆，朝这边来。