Optical flint
火石光学玻璃
🧩 词语组成解析
flint
[flint]
n. 燧石，火石;（打火机等的）打火石;
🗣️ 情景例句
I can communicate with foreigners easily.
我能轻松地和外国人沟通。
Oh? Where were you?
哦，上哪儿去了？
The Games will be held just outside the capital and the whole area will be called 'Olympic City'.
奥运会就在首都市郊举办，整个地区将被称作“奥林匹克城”。