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
In ancient times the rich used jade or gold chopsticks to display their wealth.
在古代，富人家用玉或金子制成筷子以显示其家庭的富有。
It'll take a few more weeks for the bone to mend.
还需要花两三周骨头才能复原。
People often ask me whether I like being a twin.
人们常常问我是不是喜欢双胞胎。