Apochromats
n. 高度消色透镜
🗣️ 情景例句
This is my friend Harry Bennett.
这是我的朋友Harry Bennett。
He has a cup.
他有一只杯子。
The sea bed was scoured with powerful nets and there was tremendous excitement on board went a chest was raised from the bottom.
他们用结实的网把海床搜索了一遍。