Catoptrics
n. 反射光学\\n[医] 反射光学
🗣️ 情景例句
This is Gao Qiang in Room 409.
我是409房间的高强。
Would you please tell us the price of these electric heaters so as to help us make the decision.
能否告知这些电热器的价格，以便我们作出决定。
May I wait?
我等他一下没关系吧？