Focal length
[计] 焦距\\n[化] 焦距
📖 牛津释义
focal length
(also focal distance), distance between the centre of a mirror or a lens and its focus 焦距.
🧩 词语组成解析
focal
['fəukəl]
adj. 焦点的，有焦点的;集中在点上的;病灶的，病灶性的;
🗣️ 情景例句
Your room number is 512. Here's your key.
房间号码是512。这是您的钥匙。
Up to you.
随便你。
When Gary told me that he wanted to be a painter, I refused to give him any money.
当加里告诉我他想要当画家的时候，我拒绝给他钱。