Geometrical optics
[化] 几何光学
🧩 词语组成解析
optics
['ɔptiks]
n. 光学;
🗣️ 情景例句
How about the pricing?
价格怎么样？
A secret between more than two is no secret.
两人以上知道的秘密就不算秘密。
Is it a black cat with one white ear and two white legs?
是那只长着一只白耳朵和两条白腿的黑猫吗？