Opticity
旋光性, 光偏振性
🗣️ 情景例句
Where will we put all the presents?
我们把这些礼物放在哪里？
When I saw Mr. Jones,he was talking with John Smith.
当我看见琼斯先生时，他与约翰·史密斯正在谈话。
You might both have been caught and killed!
你们俩可能给抓住杀了。