Photodichroism
光二色性
🗣️ 情景例句
Give me a cup of coffee, please.
请给我一杯咖啡。
When did you go painting?
你什么时候去画画？
By bicycle? From Beijing? That's a long trip.
骑自行车去？从北京出发？这可是长途旅行呀。