Sph
abbr. spherical lens 球面透镜
🗣️ 情景例句
That took place right after the First World War, didn't it?
它就发生在第一次世界大战之后，是吗？
Living without an aim is like sailing without a compass.
生活没有目标，犹如航海没有罗盘。
I walked across the park.
我穿过了公园。