Vertex of lens
[医] 透镜顶
🧩 词语组成解析
vertex
['vɝtɛks]
n. 最高点;顶点;<数>（三角形、圆锥体等与底相对的）顶;（三角形、多边形等的）角的顶点;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
lens
[lɛnz]
n. 透镜，镜头;眼睛中的水晶体;隐形眼镜;汽车的灯玻璃;
🗣️ 情景例句
They don't have a coffee shop.
他们也没有咖啡厅。
That's a good idea .
那是个好生意。
At that time only the British government had the right to sell salt, which was taxed, so Gandhi encouraged the whole nation to make their own salt.
那时，只有英国政府有权出售盐，而且盐是要征税的。于是甘地鼓励所有的国民自己生产盐。