Catoptrics
n. 反射光学\\n[医] 反射光学
🗣️ 情景例句
Tom's about to open the doors. Tom
准备要开门了。
Who are you writing to?
你在给谁写信？
Many of the stars cannot be seen because they are too far away.
许多星星我们之所以看不见，是因为它们离我们太远。