Electroluminor
电致发光磷光体
🗣️ 情景例句
Sir, everything now is offered with a great discount.
先生，所有的东西都在打很大的折扣。
He is surprised.
他大为惊讶。
I was being tested for a driving licence for the third time.
我第3次接受驾驶执照考试。