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
This is a brand new product; it proved to be a craze in the American market.
这是一个全新的产品，在美国市场掀起了一股热销潮。
Could you please let us know what discount you can give for an order exceeding 400 sets?
能否告知定货超过400台你方所能给的折扣。
We still think it a miracle that they we able to do so.
他们终于成功了。至今我们仍认为这是个奇迹。