Opticity
旋光性, 光偏振性
🗣️ 情景例句
Ellen and I'll take you to your room. Ellen
和我带你去你房间。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
They are paid by the hour.
他们按时取酬。