F number
焦距比数
🧩 词语组成解析
🗣️ 情景例句
We accepted their challenge to a baseball game.
我们接受了他们棒球邀请赛的挑战。
My brother is not quite twenty-five.
我的兄弟不够25岁。
His few material possessions make it possible for him to move from place to place with ease.
他几乎没有什么财产，这使他能够轻松自如地在各地奔波。