Focal-length
[医]局部长度，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
Please inform him that Chen Gang was calling.
麻烦你通知他陈刚来过电话。
See you next time.
下次见。
It's a secret between you and me.
这是你我之间的秘密。