F-number
n. 数, 光圈数
🧩 词语组成解析
🗣️ 情景例句
That's great.
真棒！
That's a liberal point of view.
那是一个开明的观点。
A crowd of people gathered round him and a lady rubbed his arm with soap and butter, but George was firmly stuck.
这时在他周围上了许多人，一位女士在乔治胳膊上抹了肥皂，黄油，但乔治的胳膊仍然卡得紧紧的。