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
Help yourselves.
请随便用。
As we sow, so shall we reap.
种瓜得瓜，种豆得豆。
Or possibly I should have gone to the manager and told him who was stealing meat.
或者我早该去找经理，告诉他谁在偷肉。